def GetIrisUsingThreshold(gray,pupil):
tempResultImg = cv2.cvtColor(gray,cv2.COLOR_GRAY2BGR) #used to draw temporary results
props = RegionProps()
val,binI =cv2.threshold(gray, 110, 255, cv2.THRESH_BINARY_INV)
n=3
n2=3
ker=np.ones((n,n))/(n**2)
ker2=np.ones((n2,n2))/(n2**2)
temp1=cv2.dilate(binI, ker2)
temp2=cv2.erode(binI, ker)
temp3=cv2.add(temp1,temp2)
temp4=cv2.add(temp2,temp1)
temp5=cv2.add(temp3,temp4)
temp6=cv2.add(temp4,temp3)
binI=temp3
cv2.imshow("Threshold",binI)
contours, hierarchy = cv2.findContours(binI, cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE)
a=500.0
b=6000.0
c=0.30
glintElipseArray=[]
for i in contours:
vals = props.CalcContourProperties(i.astype('int'),['Area','Length','Centroid','Extend','ConvexHull'])
if a<vals['Area'] and b>vals['Area']:
if c<vals['Extend']:
x,y=vals['Centroid']
cv2.circle(tempResultImg,(int(x),int(y)), 2, (0,255,0),4) #draw a circle
if (len(i.astype(int))>=5):
temp=cv2.fitEllipse(i.astype(int))
ax=int(temp[0][0])
bx=int(temp[0][1])
cx=int((temp[1][0]+temp[1][1])/4)
glintElipseArray.append(cv2.fitEllipse(i.astype(int)))
cv2.imshow("TempResults",tempResultImg)
return glintElipseArray
def lipSegment(img): img = imutils.resize(img,width=300) img_copy = img.copy() landmarks = dlib_obj.get_landmarks(img) dlib_obj.get_face_mask(img_copy, landmarks) output_img = img-img_copy output_img = cv2.cvtColor(output_img,cv2.COLOR_BGR2GRAY) contours,hierarchy = cv2.findContours(output_img.copy(), cv2.cv.CV_RETR_EXTERNAL, cv2.cv.CV_CHAIN_APPROX_SIMPLE) #cv2.findContours(image, mode, method cv2.drawContours(img, contours, -1, (0,255,0), 2,maxLevel=0) cnt = contours[0] ellipse = cv2.fitEllipse(cnt) (x,y),(MA,ma),angle = cv2.fitEllipse(cnt) a = ma/2 b = MA/2 eccentricity = sqrt(pow(a,2)-pow(b,2)) eccentricity = round(eccentricity/a,2) font = cv2.FONT_HERSHEY_SIMPLEX cv2.putText(img,'Eccentr= '+str(round(eccentricity,3)),(10,350), font, 1,(255,0,0),2,16) if(eccentricity < 0.9): cv2.putText(img,'Commands = O',(10,300), font, 1,(0,0,255),2,16) else: cv2.putText(img,'Commands = E',(10,300), font, 1,(0,0,255),2,16) return img
def trackRobot(self, imagePath):
'''this function track the robot and return its coordinates'''
img = cv2.imread(imagePath)
img = cv2.flip(img, 1)
img = cv2.flip(img, 0)
# convert into hsv
hsv = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
# Find mask that matches
green_mask = cv2.inRange(hsv, np.array((50., 30., 0.)), np.array((100., 255., 255.)))
green_mask = cv2.erode(green_mask, None, iterations=2)
green_mask = cv2.dilate(green_mask, None, iterations=2)
green_cnts = cv2.findContours(green_mask.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)[-2]
green_c = max(green_cnts, key=cv2.contourArea)
# fit an ellipse and use its orientation to gain info about the robot
green_ellipse = cv2.fitEllipse(green_c)
# This is the position of the robot
green_center = (int(green_ellipse[0][0]), int(green_ellipse[0][1]))
red_mask = cv2.inRange(hsv, np.array((0., 100., 100.)), np.array((80., 255., 255.)))
red_mask = cv2.erode(red_mask, None, iterations=2)
red_mask = cv2.erode(red_mask, None, iterations=2)
red_cnts = cv2.findContours(red_mask.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)[-2]
red_c = max(red_cnts, key=cv2.contourArea)
red_ellipse = cv2.fitEllipse(red_c)
red_center = (int(red_ellipse[0][0]), int(red_ellipse[0][1]))
return green_center, red_center
def main():
print "\tSTARTING!!"
# capture frames from the camera
for frame in camera.capture_continuous(rawCapture, format="bgr",use_video_port=True):
# grab the raw NumPy array representing the image, then initialize the timestamp
# and occupied/unoccupied text
img= frame.array
img = imutils.resize(img, width = 200)
img_copy = img.copy()
cv2.imwrite('lip_reader2.jpg',img)
landmarks = get_landmarks(img)
get_face_mask(img_copy, landmarks)
output_img = img-img_copy
output_img = cv2.cvtColor(output_img,cv2.COLOR_BGR2GRAY)
contours,hierarchy = cv2.findContours(output_img.copy(), cv2.cv.CV_RETR_EXTERNAL, cv2.cv.CV_CHAIN_APPROX_SIMPLE) #cv2.findContours(image, mode, method
#cv2.drawContours(img, contours, -1, (0,255,0), 2,maxLevel=0)
cnt = contours[0]
ellipse = cv2.fitEllipse(cnt)
(x,y),(MA,ma),angle = cv2.fitEllipse(cnt)
cv2.ellipse(img,ellipse,(0,255,0),2)
a = ma/2
b = MA/2
eccentricity = sqrt(pow(a,2)-pow(b,2))
eccentricity = round(eccentricity/a,2)
font = cv2.FONT_HERSHEY_SIMPLEX
#cv2.putText(img,'ma = '+str(round(ma,2)),(10,100), font, 1,(255,0,0),1,1)
#cv2.putText(img,'MA = '+str(round(MA,2)),(10,150), font, 1,(255,0,0),1,1)
cv2.putText(img,'Eccentricity = '+str(round(eccentricity,3)),(10,100), font, 1,(255,0,0),1,1)
if(eccentricity < 0.84):
print 'O'
cv2.putText(img,'Commands = O',(10,150), font, 1,(0,0,255),1,1)
else:
print 'E'
cv2.putText(img,'Commands = E',(10,150), font, 1,(0,0,255),1,1)
#cv2.imwrite('output_e3.jpg',img)
cv2.imshow('Mask',img_copy)
cv2.imshow('Output', output_img)
cv2.imshow('Img',img)
# show the frame
key = cv2.waitKey(1) & 0xFF
# clear the stream in preparation for the next frame
rawCapture.truncate(0)
# if the `q` key was pressed, break from the loop
if key == ord("q"):
break# import the necessary packages
def find_single_bin(self, img, bin_type):
"""Find the bins and their orientations."""
assert bin_type in self.bins[bin_type], "Bins_2d does not know bin color: {}".format(bin_type)
if img is not None:
kernel = np.ones((2,2),np.float32)/4
img = cv2.filter2D(img,-1,kernel)
debug_image = np.copy(img)
img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
zeros = np.array([0])
ret,img = cv2.threshold(img,254,255,cv2.THRESH_BINARY)
contours, hierarchy = cv2.findContours(np.copy(img), cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
contours = contour_sort(contours)
"""This finds the bins and looks for the one that is orange or is not
orange. Each bin is given an orangeness rating and either the most
or least orange bin is selected.
"""
if len(contours) > 0:
bins = 2
if (self.bin_type == 'orange'):
orangeness = 0
else:
orangeness = 100000
if len(contours) < bins:
bins = len(contours)
for i in range(0, bins+1):
x, y, w, h = cv2.boundingRect(contours[i])
roi = debug_image[y: y + h, x: x + w]
temp = evaluate_bin(roi)
if ((orangeness > temp and self.bin_type == 'norange')
or (orangeness < temp and self.bin_type == 'orange')):
orangeness = temp
M = cv2.moments(contours[i])
cx = int(M['m10'] / M['m00'])
cy = int(M['m01'] / M['m00'])
img_h, img_w, _ = np.shape(debug_image)
point = (cx, cy)
(_, _), (_, _), rad = cv2.fitEllipse(contours[i])
cv2.rectangle(debug_image, (x, y), (x + w, y + h), (127), 2)
ellipse = cv2.fitEllipse(contours[i])
cv2.ellipse(debug_image, ellipse, (170), 2)
if point != None:
cv2.circle(debug_image, point, 5, (0, 0, 255), -1)
pixels = np.copy(point)
point = [cx - (img_w / 2), cy - (img_h / 2)]
tuple_center = (point[0], point[1], 0)
rad = ((rad) * np.pi) / 180.0
P = np.asarray(self.image_sub.camera_info.P).reshape(3,4)
_P = np.linalg.pinv(P)
pixels = np.asarray([pixels[0], pixels[1], 1])
ray = _P.dot(pixels)
tuple_center = self.range*ray
tuple_center[2] = -tuple_center[2]+0.45+1 #height of the bin and some buffer
self.last_draw_image = debug_image
print tuple_center
return tuple_center, rad
def estimate_affine(src_mask, trg_mask, mode='rotation'):
'''
Parameters:
===========
mode: rotation, similarity, full
'''
if int(cv2.__version__.split('.')[0]) == 3:
_, src_cont, _ = cv2.findContours(src_mask.astype('uint8'), \
cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)
_, trg_cont, _ = cv2.findContours(trg_mask.astype('uint8'), \
cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)
else:
src_cont, _ = cv2.findContours(src_mask.astype('uint8'), \
cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)
trg_cont, _ = cv2.findContours(trg_mask.astype('uint8'), \
cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)
src_ellipse = cv2.fitEllipse(src_cont[0])
trg_ellipse = cv2.fitEllipse(trg_cont[0])
rotation = (src_ellipse[2] - trg_ellipse[2]) / 180. * np.pi
if mode == 'rotation':
scale_x = scale_y = 1
elif mode == 'similarity':
scale_x = scale_y = (trg_ellipse[1][0] / src_ellipse[1][0] \
+ trg_ellipse[1][1] / src_ellipse[1][1]) / 2
elif mode == 'full':
scale_x = trg_ellipse[1][0] / src_ellipse[1][0]
scale_y = trg_ellipse[1][1] / src_ellipse[1][1]
else:
raise RuntimeError('mode %s not in ' \
'[\'rotation\', \'similarity\', \'full\']' % mode)
shift_src = src_ellipse[0]
shift_trg = trg_ellipse[0]
# Compute transformation matrices
alpha = np.cos(rotation)
beta = np.sin(rotation)
t0 = np.array([[+alpha, +beta, (1. - alpha) * shift_src[0] \
- beta * shift_src[1] \
+ shift_trg[0] - shift_src[0]], \
[-beta, +alpha, beta * shift_src[0] \
+ (1. - alpha) * shift_src[1] \
+ shift_trg[1] - shift_src[1]]], 'float32')
alpha = scale_x * np.cos(np.pi + rotation)
beta = scale_y * np.sin(np.pi + rotation)
t1 = np.array([[+alpha, +beta, (1. - alpha) * shift_src[0] \
- beta * shift_src[1] \
+ shift_trg[0] - shift_src[0]], \
[-beta, +alpha, beta * shift_src[0] \
+ (1. - alpha) * shift_src[1] \
+ shift_trg[1] - shift_src[1]]], 'float32')
return t0, t1
def color_contours(self, blob_img, contours):
"""
Return a colored image where the regions within certain the contours
is colored in.
:param blob_image:
:return:
"""
labeled_img = np.zeros(blob_img.shape + (3, ), np.uint8)
colors = ((0,0,255),(0,255,0),(255,0,0),(0,255,255),(255,0,255), (255, 255, 0))
pnts_list = []
mask_list = []
for ind, contour in enumerate(contours):
mask = np.zeros(blob_img.shape, np.uint8)
cv2.drawContours(mask, [contour], 0, 255, -1, 8)
pixel_points = cv2.findNonZero(mask)#(x,y)
labeled_img[mask == 255] = colors[ind]
pnts_list.append(pixel_points)
mask_list.append(mask)
k = 0
angles = []
for cnt in contours:
if len(cnt) < 10:
#don't care about tiny contours
# this should have already been protected for in the
# large_contour code, but that is technically area
angles.append(0)
continue
pixel_points = pnts_list[k]
M = cv2.moments(cnt)#expects to get a contour - uses Green's theorem
#center of blob
cx = int(M['m10']/M['m00'])
cy = int(M['m01']/M['m00'])
#ellipsoid outline of blob
ellipse = cv2.fitEllipse(cnt)
(x, y), (MA, ma), angle = cv2.fitEllipse(pixel_points)#yet another way to get the angle
angles.append(angle)
#line fitting, THIS WAS SLOWING ME DOWN
#DIST_L1 = 1: |x1-x2| + |y1-y2| */, DIST_L2 = 2: euclidean distance, DIST_C = : max(|x1-x2|,|y1-y2|)
[vx, vy, x, y] = cv2.fitLine(pixel_points, 1, 0, 0.01, 0.01)
pt1 = (np.array((x, y)) + 20*np.array((vx, vy))).astype('int32')
pt2 = (np.array((x, y)) - 20*np.array((vx, vy))).astype('int32')
cv2.line(labeled_img, tuple(pt1), tuple(pt2), (0, 128, 128), 2, 8)
k += 1
return labeled_img, angles
def main():
while True:
try:
ret,img = cam.read()
hand_track(img)
if not ret:
print "Error opening file"
break
img_copy = img.copy()
landmarks = get_landmarks(img)
get_face_mask(img_copy, landmarks)
output_img = img-img_copy
output_img = cv2.cvtColor(output_img,cv2.COLOR_BGR2GRAY)
contours,hierarchy = cv2.findContours(output_img.copy(), cv2.cv.CV_RETR_EXTERNAL, cv2.cv.CV_CHAIN_APPROX_SIMPLE) #cv2.findContours(image, mode, method
#cv2.drawContours(img, contours, -1, (0,255,0), 2,maxLevel=0)
cnt = contours[0]
ellipse = cv2.fitEllipse(cnt)
(x,y),(MA,ma),angle = cv2.fitEllipse(cnt)
cv2.ellipse(img,ellipse,(0,255,0),2)
a = ma/2
b = MA/2
eccentricity = sqrt(pow(a,2)-pow(b,2))
eccentricity = round(eccentricity/a,2)
font = cv2.FONT_HERSHEY_SIMPLEX
cv2.putText(img,'ma = '+str(round(ma,2)),(10,300), font, 1,(255,0,0),2,16)
cv2.putText(img,'MA = '+str(round(MA,2)),(10,350), font, 1,(255,0,0),2,16)
cv2.putText(img,'Eccentricity = '+str(round(eccentricity,3)),(10,400), font, 1,(255,0,0),2,16)
if(eccentricity < 0.88):
cv2.putText(img,'Commands = O',(10,450), font, 1,(0,0,255),2,16)
else:
cv2.putText(img,'Commands = E',(10,450), font, 1,(0,0,255),2,16)
cv2.imshow('Mask',img_copy)
cv2.imshow('Output', output_img)
cv2.imshow('Img',img)
if cv2.waitKey(20) & 0xFF == ord('q'): # To move frame by frame
print "Pressed Q, quitting!!"
break
except ValueError as e:
print e
def getLabelInfo(labels, label_find, k, map_M, r_wide, im, cen):
posY = int(label_find[k][0].start)
posX = int(label_find[k][1].start)
cont = cv2.findContours(np.uint8(labels[0][label_find[k]]),cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
# mom = cv2.moments(im)
# hu = cv2.HuMoments(mom)
blob = []
# Si obtuve un contorno válido
if len(cont[1]) > 0 and len(cont[1][0]) > 4:
peri = cv2.arcLength(cont[1][0],True)
area = cv2.contourArea(cont[1][0])
eli = cv2.fitEllipse(cont[1][0])
eli_max = eli[1][1]
eli_min = eli[1][0]
posM = intT(transformPerspective(cen,map_M))
posYt = normalizeYt(r_wide, posM[1])
sqrtAr = np.sqrt(area)
if sqrtAr > 0 and eli_max != 0:
blob.append(sqrtAr / posYt) # sqrt(Area) / Y de centro transformado
blob.append(sqrtAr / peri) # Perimetro / sqrt (Area)
blob.append(eli_min / eli_max) # Dimension de elipse
# for i in range(0,7):
# blob.append(hu[i][0])
return blob
def GetPupil(gray,thr):
tempResultImg = cv2.cvtColor(gray,cv2.COLOR_GRAY2BGR) #used to draw temporary results
props = RegionProps()
val,binI = cv2.threshold(gray, thr, 255, cv2.THRESH_BINARY_INV)
#Combining Closing and Opening to the thresholded image
st7 = cv2.getStructuringElement(cv2.MORPH_CROSS,(7,7))
st9 = cv2.getStructuringElement(cv2.MORPH_CROSS,(9,9))
st15 = cv2.getStructuringElement(cv2.MORPH_CROSS,(15,15))
binI = cv2.morphologyEx(binI, cv2.MORPH_CLOSE, st9) #Close
binI= cv2.morphologyEx(binI, cv2.MORPH_OPEN, st15) #Open
binI = cv2.morphologyEx(binI, cv2.MORPH_DILATE, st7, iterations=2) #Dialite
cv2.imshow("ThresholdPupil",binI)
#Calculate blobs
sliderVals = getSliderVals() #Getting slider values
contours, hierarchy = cv2.findContours(binI, cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE) #Finding contours/candidates for pupil blob
pupils = []
pupilEllipses = []
for cnt in contours:
values = props.CalcContourProperties(cnt,['Area','Length','Centroid','Extend','ConvexHull']) #BUG - Add cnt.astype('int') in Windows
if values['Area'] < sliderVals['maxSizePupil'] and values['Area'] > sliderVals['minSizePupil'] and values['Extend'] < 0.9:
pupils.append(values)
centroid = (int(values['Centroid'][0]),int(values['Centroid'][1]))
cv2.circle(tempResultImg,centroid, 2, (0,0,255),4)
pupilEllipses.append(cv2.fitEllipse(cnt))
cv2.imshow("TempResults",tempResultImg)
return pupilEllipses
def process_image(args, path):
global intersects, rotation, img, img_src, center
img = cv2.imread(path)
if img == None or img.size == 0:
logging.info("Failed to read %s" % path)
return
logging.info("Processing %s..." % path)
# Scale the image down if its perimeter exceeds the maximum (if set).
img = common.scale_max_perimeter(img, args.max_size)
img_src = img.copy()
# Perform segmentation
logging.info("- Segmenting...")
mask = common.grabcut(img, args.iters, None, args.margin)
bin_mask = np.where((mask == cv2.GC_FGD) + (mask == cv2.GC_PR_FGD), 255, 0).astype("uint8")
# Obtain contours (all points) from the mask.
contour = ft.get_largest_contour(bin_mask, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)
# Fit an ellipse on the contour to get the rotation angle.
box = cv2.fitEllipse(contour)
rotation = int(box[2])
# Get the shape360 feature.
logging.info("- Obtaining shape...")
intersects, center = ft.shape_360(contour, rotation)
logging.info("- Done")
draw_axis()
def getDarkEllipse(self,img):
#if not self.isFid:
# #cv2.imwrite(self.name + "_" + "%.2d" % imageNum + "_raw.png" , img)
try:
smoothedImg = cv2.GaussianBlur(img,(self.blurSize,self.blurSize),0)
#if not self.isFid:
# #cv2.imwrite(self.name + "_" + "%.2d" % imageNum + "_smoothed.png" , img)
except:
print 'cv2.GaussianBlur failed'
# cv2.imwrite('temp.png',img)
return None
try:
dataMin = scipy.ndimage.filters.minimum_filter(smoothedImg, self.filterSize)
except:
print 'scipy.ndimage.filters.minimum_filter failed'
# cv2.imwrite('temp.png',img)
return None
if dataMin!=None:
try:
minLocs = numpy.where(dataMin<(numpy.min(dataMin)+numpy.std(dataMin)))
except:
print 'numpy.where failed'
# cv2.imwrite('temp.png',img)
return None
if len(minLocs[0])>=5:
try:
ellipse = cv2.fitEllipse(numpy.reshape(numpy.column_stack((minLocs[1],minLocs[0])),(len(minLocs[0]),1,2)))
except:
print 'cv2.fitEllipse failed'
# cv2.imwrite('temp.png',img)
return None
return ellipse
def GetGlints(gray,thr):
tempResultImg = cv2.cvtColor(gray,cv2.COLOR_GRAY2BGR) #used to draw temporary results
props = RegionProps()
val,binI = cv2.threshold(gray, thr, 255, cv2.THRESH_BINARY) #Using non inverted binary image
#Combining opening and dialiting seems to be the best but is it ok that other glints are visible two?????!!!!!
st7 = cv2.getStructuringElement(cv2.MORPH_CROSS,(7,7))
st9 = cv2.getStructuringElement(cv2.MORPH_CROSS,(7,7))
binI= cv2.morphologyEx(binI, cv2.MORPH_OPEN, st7)
binI = cv2.morphologyEx(binI, cv2.MORPH_DILATE, st9, iterations=2)
cv2.imshow("ThresholdGlints",binI)
#Calculate blobs
sliderVals = getSliderVals() #Getting slider values
contours, hierarchy = cv2.findContours(binI, cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE) #Finding contours/candidates for pupil blob
glints = []
glintEllipses = []
for cnt in contours:
values = props.CalcContourProperties(cnt,['Area','Length','Centroid','Extend','ConvexHull']) #BUG - Add cnt.astype('int') in Windows
if values['Area'] < sliderVals['maxSizeGlints'] and values['Area'] > sliderVals['minSizeGlints']:
glints.append(values)
centroid = (int(values['Centroid'][0]),int(values['Centroid'][1]))
cv2.circle(tempResultImg,centroid, 2, (0,0,255),4)
glintEllipses.append(cv2.fitEllipse(cnt))
cv2.imshow("TempResults",tempResultImg)
return glintEllipses
def processEye(eyesubrect, vis_roi, gray_roi, vis, gray):
"""threshold
get contours
find largest
fit ellipse
"""
# apply threshold
thresh = gray_roi.copy()
#cv2.adaptiveThreshold(leftthresh, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY_INV, 25, 25, leftthresh)
thresh = thresholdByPercentage(thresh, .075)
# find contours from thresholded img
contours, heirarchy = cv2.findContours(thresh.copy(),cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
maxarea = 0
maxidx = 0
# find contour with largest area
for idx in range(len(contours)):
a = cv2.contourArea(contours[idx])
if maxarea < a:
maxarea = a
maxidx = idx
cv2.drawContours(vis_roi, contours, maxidx, (0,0,255), -1)
# fit ellipse to the detected contour
ellipseBox = cv2.fitEllipse(contours[maxidx])
cv2.ellipse(vis_roi, ellipseBox, (50, 150, 255))
return thresh, ellipseBox
def getContours(img, fit_type='ellipse', AREA_EXCLUSION_LIMITS=(200, 2000), CELL_RADIUS_THRESHOLD = 4):
contours, hierarchy = cv2.findContours(img,
cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)
coord_list = []
for i in range(len(contours)):
if fit_type == 'circle':
radius_list = []
center_list = []
(x,y),radius = cv2.minEnclosingCircle(contours[i])
if radius > CELL_RADIUS_THRESHOLD:
center = (int(x), int(y))
center_list.append(center)
radius_list.append(radius)
cv2.circle(img,center,int(radius),(0,255,0),-11)
coord_list.append([center_list, radius_list])
elif fit_type == 'ellipse':
if len(contours[i]) >= 5:
ellipse = cv2.fitEllipse(contours[i])
area = np.pi*np.product(ellipse[1])
if area >= AREA_EXCLUSION_LIMITS[0] and area < AREA_EXCLUSION_LIMITS[1]:
cv2.ellipse(img,ellipse,(0,255,0),-1)
return img, contours, coord_list
def GetGlints(gray, thr, areaMin, areaMax):
props = RegionProps()
gray = cv2.GaussianBlur(gray, (11, 11), 0)
val,binI = cv2.threshold(gray, thr, 255, cv2.THRESH_BINARY)
cv2.imshow("Threshold Glint",binI)
#cv2.imshow("Gray", gray)
#Calculate blobs
contours, hierarchy = cv2.findContours(binI, cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE)
glints = [];
for c in contours:
tmp = props.CalcContourProperties(c, properties=["centroid", "area", "extend"])
area = tmp['Area']
extend = tmp['Extend']
#print tmp['Area']
if area > areaMin and area < areaMax and extend < 1:
if len(c) >= 5:
el = cv2.fitEllipse(c)
glints.append(el)
#canny = cv2.Canny(tempResultImg, 30, 150)
#cv2.imshow("Canny", canny)
#x, y = tmp['Centroid']
#cv2.circle(tempResultImg,(int(x), int(y)), 2, (0,0,255),4)
#cv2.ellipse(tempResultImg,el,(0,255,0),1)
#cv2.imshow("Glint detect", tempResultImg)
return glints
def isEllipse(contour):
rect = cv2.fitEllipse(contour) # Rotated rectangle representing the ellipse it tries to fit
(x, y), (w, h), angle = rect # x offset, y offset, width, height, angle
w, h = h, w # Switch them since our ellipses are usually rotated 90 degrees
# Draw TEST_INSIDE points inside the ellipse and TEST_OUTSIDE points outside and see if they're in the hull
TEST_INSIDE = 10
TEST_OUTSIDE = 10
# Equation of ellipse: (x/a)^2 + (y/b)^2 = 1
e = 0.1
tests = []
tests.append(cv2.pointPolygonTest(contour, (x, y), False))
tests.append(cv2.pointPolygonTest(contour, (x+w*(0.5-e), y), False))
tests.append(cv2.pointPolygonTest(contour, (x-w*(0.5-e), y), False))
tests.append(cv2.pointPolygonTest(contour, (x, y+h*(0.5-e)), False))
tests.append(cv2.pointPolygonTest(contour, (x, y-h*(0.5-e)), False))
tests.append(not cv2.pointPolygonTest(contour, (x+w*(0.5-e), y+h*(0.5-e)), False))
tests.append(not cv2.pointPolygonTest(contour, (x+w*(0.5-e), y-h*(0.5-e)), False))
tests.append(not cv2.pointPolygonTest(contour, (x-w*(0.5-e), y+h*(0.5-e)), False))
tests.append(not cv2.pointPolygonTest(contour, (x-w*(0.5-e), y-h*(0.5-e)), False))
for test in tests:
if test == -1.0:
return False
return True
def find_ellipses(source_image, canny_image, min_points=5, \
axes_ratio=1.5, minor_axes_ratio=25, major_axes_ratio=15):
# declaring variables
i = 0
height, width, channels = source_image.shape
ellipse_list = []
# find all the contours
contours, hierarchy = cv2.findContours(canny_image, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
number_of_contours = len(contours)
# finding and filtering ellipses
while i < number_of_contours:
if len(contours[i]) >= min_points:
ellipse = cv2.fitEllipse(contours[i])
(x, y), (minor_axis, major_axis), angle = ellipse
if minor_axis != 0 and major_axis != 0 and major_axis / minor_axis <= axes_ratio:
ellipse_min_ratio = width / minor_axis
ellipse_maj_ratio = height / major_axis
if minor_axes_ratio >= ellipse_min_ratio >= 1.5 and major_axes_ratio >= ellipse_maj_ratio >= 1.5:
ellipse_list.append(ellipse)
i += 1
return ellipse_list
def _get_poly_8(self, contour):
"""ellipse format: ((x,y),(s,l),0)"""
plots = []
epsilon = 100
def dynamic_approx_poly(epsilon):
for i in range(20):
poly_points = cv2.approxPolyDP(contour, epsilon=epsilon, closed=True)
if len(poly_points) == self.poly_number:
return poly_points
elif len(poly_points) > self.poly_number:
epsilon += 50
else:
epsilon -= 50
return poly_points
poly_points = dynamic_approx_poly(epsilon)
if len(poly_points) < 5:
raise PolyPointsError("poly point not enough")
ellipse = cv2.fitEllipse(poly_points)
for n, i in enumerate(poly_points):
x, y = i[0]
plot_arg = ((x, y), 20, (255, 255, 255))
plot_kwarg = {"lineType": 10}
plot = ("circle", plot_arg, plot_kwarg)
plots.append(plot)
plot_arg = ((x, y), 5, (255, 255, 255), -1)
plot_kwarg = {"lineType": 10}
plot = ("circle", plot_arg, plot_kwarg)
plots.append(plot)
return ellipse, plots
def run(self, img, blurindex=False):
u"""主要的执行函数：
1、滤波
2、提取轮廓
3、合并轮廓
4、椭圆拟合
5、计算结果
:param img:
:param blurindex:
:return:
"""
# blurindex = SETTING()["medianBlur"].get("corefilter", 3)
# raise ValueError("abc")
if blurindex:
img = cv2.medianBlur(img, blurindex)
# cv2.imshow("img", img[::4, ::4])
# cv2.waitKey()
contours, hierarchys = cv2.findContours(img.copy(), cv2.RETR_TREE, cv2.CHAIN_APPROX_NONE)
# tempPlots = np.ones(img.shape) * 255
logger.info('get contours len %s' % len(contours))
if len(contours) == 0:
raise NoneContoursError("contours = 0")
elif len(contours) == 1:
mergedpoints = contours[0]
else:
mergedpoints = np.concatenate(contours[1:])
ellipse = cv2.fitEllipse(mergedpoints)
result = self._getResult(ellipse)
result['ellipese'] = ellipse
# cv2.ellipse(tempPlots, ellipse, (0,255,255))
# result['plot'] = tempPlots
result['contour'] = mergedpoints
return result
def ransac(self, ntrials, contour, small_gray, draw):
# RANSAC implementation starts
r2centerx = []
r2centery = []
r2majrad = []
r2minrad = []
r2angle = []
for i in range(ntrials):
if len(contour) > 60:
# embed()
samples = contour[np.random.choice(len(contour), int(len(contour) / 10))]
ellipse = cv2.fitEllipse(samples)
if draw:
cv2.ellipse(small_gray, ellipse, (0, 0, 255), 2)
r2centerx.append(ellipse[0][0])
r2centery.append(ellipse[0][1])
r2majrad.append(ellipse[1][1])
r2minrad.append(ellipse[1][0])
r2angle.append(ellipse[2])
else:
r2centerx.append(100 * (i % 2))
r2centery.append(100 * (i % 2))
r2majrad.append(100 * (i % 2))
r2minrad.append(100 * (i % 2))
r2angle.append(100 * (i % 2))
r2centerx = np.asarray(r2centerx)
r2centery = np.asarray(r2centery)
r2majrad = np.asarray(r2majrad)
r2minrad = np.asarray(r2minrad)
r2angle = np.asarray(r2angle)
return r2centerx, r2centery, r2majrad, r2minrad, r2angle, small_gray
def detectCircles():
im = cv2.imread('oldImage.jpg')
imgray = cv2.cvtColor(im, cv2.COLOR_BGR2GRAY)
imgray_Blur = cv2.GaussianBlur(imgray, (15,15), 0)
thresh = cv2.adaptiveThreshold(imgray_Blur, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV, 11, 1)
kernel = np.ones((3,3), np.uint8)
closing = cv2.morphologyEx(thresh, cv2.MORPH_CLOSE, kernel, iterations = 4)
cont_img = closing.copy()
#ret, thresh = cv2.threshold(imgray, 127, 255, 0
contours, hierarcy = cv2.findContours(thresh, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
for cnt in contours:
area = cv2.contourArea(cnt)
'''if area < 2000 or area > 4000:
continue
if len(cnt) < 5:
continue
'''
ellipse = cv2.fitEllipse(cnt) #returns array [(centerx, centery), (radiusx, radiusy), rotation]
#cv2.ellipse(im, ellipse, (0,0,255), 2)
centerx = ellipse[0][0]
centery = ellipse[0][1]
radiusx = ellipse[1][0]
radiusy = ellipse[1][1]
rotation = ellipse[2]
print "Ellipse "
print centerx, centery, radiusx, radiusy, rotation
def drawStuff(centerCordinates, image):
# http://opencvpython.blogspot.no/2012/06/contours-2-brotherhood.html
# http://docs.opencv.org/3.1.0/dd/d49/tutorial_py_contour_features.html#gsc.tab=0pyth
############## creating a minimum rectangle around the object ######################
rect = cv2.minAreaRect(points=centerCordinates)
box = cv2.cv.BoxPoints(rect)
box = np.int0(box)
cv2.drawContours(image,[box],0,(255,255,255),2)
########### circle around object #######3
(x, y),radius = cv2.minEnclosingCircle(centerCordinates)
center = (int(x),int(y))
radius = int(radius)
cv2.circle(image, center, radius, (255,255,255),2)
########### finding a elipse ##############
ellipse = cv2.fitEllipse(centerCordinates)
cv2.ellipse(image,ellipse,(255,255,255),2)
##### fitting a line ###########
rows,cols = image.shape[:2]
[vx,vy,x,y] = cv2.fitLine(points=centerCordinates, distType=cv2.cv.CV_DIST_L2, param =0, reps=0.01, aeps=0.01)
lefty = int((-x*vy/vx) + y)
righty = int(((cols-x)*vy/vx)+y)
cv2.line(image,(cols-1,righty),(0,lefty),(255,255,255),2)
pixelSizeOfObject = radius # an okay estimate for testing
return image, pixelSizeOfObject
def GetGlints(gray,thr,minS,maxS):
''' Given a gray level image, gray and threshold
value return a list of glint locations'''
# YOUR IMPLEMENTATION HERE !!!!
tempResultImg = cv2.cvtColor(gray,cv2.COLOR_GRAY2BGR) #used to draw temporary results
#cv2.circle(tempResultImg,(100,200), 2, (0,0,255),4) #draw a circle
#cv2.imshow("TempResults",tempResultImg)
props = RegionProps()
val,binI =cv2.threshold(gray, thr, 255, cv2.THRESH_BINARY)
cv2.imshow("ThresholdInverse",binI)
#Calculate blobs
_, contours, hierarchy= cv2.findContours(binI, cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE)
glints = [];
glintEllipses = [];
Centroids = [];
# YOUR IMPLEMENTATION HERE !!!!
#CalcContourProperties
for cnt in contours:
vals = props.CalcContourProperties(cnt,['Area','Length','Centroid','Extend','ConvexHull'])
if vals['Area']> minS and vals['Area']< maxS:
if vals['Extend'] < 1:
glints.append(cnt)
#print vals['Centroid']
#cv2.circle(tempResultImg,(int(vals['Centroid'][0]),int(vals['Centroid'][1])), 2, (255,0,0),-1) #draw a circle
Centroids.append(vals['Centroid'])
glintEllipse = cv2.fitEllipse(cnt)
glintEllipses.append(glintEllipse)
#cv2.ellipse(tempResultImg,ellipse,(0,255,0),2)
#cv2.imshow("TempResultsglint",tempResultImg)
return (glints,glintEllipses,Centroids)
def main():
np_img = cv2.imread('8.bmp', 0)
blur = cv2.GaussianBlur(np_img,(5,5),0)
ret3, th3 = cv2.threshold(blur, 0, 255, cv2.THRESH_BINARY + cv2.THRESH_OTSU)
kernel = np.ones((3, 3), np.uint8)
closing = cv2.morphologyEx(th3, cv2.MORPH_CLOSE, kernel, iterations=4)
cont_img = closing.copy()
contours, hierarchy = cv2.findContours(cont_img, cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
for cnt in contours:
area = cv2.contourArea(cnt)
if area < 200 or area > 8000:
continue
if len(cnt) < 5:
continue
ellipse = cv2.fitEllipse(cnt)
cv2.ellipse(np_img, ellipse, (155,155,0), 2)
while True:
cv2.imshow('final result', np_img)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
def find_blob(im):
im[:30, :] = 0
im[-30:, :] = 0
im[:, :10] = 0
im[:, -10:] = 0
# thresh, im_bw = cv2.threshold(im, 0, 255, cv2.THRESH_BINARY | cv2.THRESH_OTSU)
# print thresh
thresh, im_bw = cv2.threshold(im, 100, 255, cv2.THRESH_BINARY)
contours, hierarchy = cv2.findContours(im_bw.copy(), cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE)
# moments = [cv2.moments(i).nu20 for i in contours]
# all_bbox = [cv2.boundingRect(i) for i in contours]
all_area = np.array([cv2.contourArea(c) for c in contours])
# all_aspect_ratio = np.array([float(b[2]) / b[3] for b in all_bbox])
print all_area
big_indices = np.nonzero(all_area > config.AREA_THRESH)[0]
print big_indices
ellipses = [cv2.fitEllipse(contours[i]) for i in big_indices]
color = [0, 255, 0]
im_rgb = cv2.cvtColor(im_bw, cv2.COLOR_GRAY2RGB)
for ell in ellipses:
center, dimension, angle = ell
h, w = dimension
print h, w
cv2.ellipse(im_rgb, ell, color, 2, 8)
cv2.namedWindow('threshold')
cv2.moveWindow('threshold', 800, 100)
cv2.imshow('threshold', im_rgb)
cv2.waitKey()
cv2.destroyAllWindows()
def FitEllipse_LeastSquares(pnts, roi, cfg):
"""
Simple least-squares ellipse fit to boundary points
Parameters
----
pnts : n x 2 array of integers
Candidate pupil-iris boundary points from edge detection
roi : 2D scalar array
Grayscale image of pupil-iris region for display only
cfg : configuration structure
Configuration parameters
Returns
----
best_ellipse : tuple of tuples
Best fitted ellipse parameters ((x0, y0), (a,b), theta)
"""
# Tiny circle init
best_ellipse = ((0, 0), (1e-6, 1e-6), 0)
# Break if too few points to fit ellipse (RARE)
if pnts.shape[0] < 5:
return best_ellipse
# Call OpenCV ellipse fitting
best_ellipse = cv2.fitEllipse(pnts)
return best_ellipse
def fit_ellipses(img):
import cv2
img = cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
img = cv2.medianBlur(img, 5)
#ret, thresh = cv2.threshold(img, 169, 255, 0)
thresh = cv2.adaptiveThreshold(img, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 11, 2)
contours, hierarchy = cv2.findContours(thresh, 1, 2)
#print contours
cntLengths = [len(i) for i in contours]
cntMax = cntLengths.index(max(cntLengths))
for i in range(len(contours)):
if 10 < len(contours[i]) < 1500:
cnt = contours[i]
M = cv2.moments(cnt)
#print M
cx = int(M['m10']/M['m00'])
cy = int(M['m01']/M['m00'])
print "cx: ", cx
print "cy: ", cy
ellipse = cv2.fitEllipse(cnt)
cv2.ellipse(img, ellipse, (0, 255, 0), 2)
cv2.imshow('img', img)
cv2.waitKey()
cv2.destroyAllWindows()
def isEllipse(contour):
'''
Detects if the given polygon is an ellipse.
Returns the ellipse form of the polygon if it's an ellipse, None otherwise.
'''
try: rect = cv2.fitEllipse(contour) # Rotated rectangle representing the ellipse it tries to fit
except: return None
(x, y), (w, h), angle = rect # x offset, y offset, width, height, angle
w, h = h, w # Switch them since our ellipses are usually rotated 90 degrees
TEST_POINTS = 16
E = 0.1 # Radius percentage increase/decrease for test points
MIN_SUCC_RATE = 0.9
successes = 0
for a in np.arange(0, 2*math.pi, 2*math.pi/TEST_POINTS):
ipoint = (x+0.5*w*math.cos(a)*(1-E), y+0.5*h*math.sin(a)*(1-E))
opoint = (x+0.5*w*math.cos(a)*(1+E), y+0.5*h*math.sin(a)*(1+E))
test = cv2.pointPolygonTest(contour, ipoint, False)
if cv2.pointPolygonTest(contour, ipoint, False) > 0: # The inside point is inside
successes += 1
if cv2.pointPolygonTest(contour, opoint, False) < 0: # The outside point is outside
successes += 1
succ_rate = successes / (TEST_POINTS * 2)
if succ_rate >= MIN_SUCC_RATE:
return rect
else:
return None
def process(self, annotator, iohelper):
img = cv2.imread(iohelper.thumbnail())
image = img.copy()
# Preprocessing like gray-scaling, thresholding, closing
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
gray_blur = cv2.GaussianBlur(gray, (9, 9), 0)
thresh = cv2.adaptiveThreshold(gray_blur, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY_INV, 31, 11)
kernel = np.ones((3, 3), np.uint8)
closing = cv2.morphologyEx(thresh, cv2.MORPH_CLOSE, kernel, iterations=2)
# Contour detection
cont_img = closing.copy()
if int(cv2.__version__[0]) < 3:
contours, _ = cv2.findContours(\
cont_img, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
else:
_, contours, _ = cv2.findContours(\
cont_img, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
# Draw rectangles and add found bug to annotator.
i = 0
for cnt in contours:
area = cv2.contourArea(cnt)
ellipse = cv2.fitEllipse(cnt)
center, axes, angle = ellipse
rect_area = axes[0] * axes[1]
rect = np.round(np.float64(cv2.cv.BoxPoints(ellipse))).astype(np.int64)
annotator.add_bug(*rect)
color = (255,0,0)
cv2.drawContours(image, [rect], 0, color, 1)
i = (i + 30) % 255
return image
import sys
import numpy as np
import cv2 as cv
hsv_min = np.array((0, 77, 17), np.uint8)
hsv_max = np.array((208, 255, 255), np.uint8)
if __name__ == '__main__':
fn = 'donuts.jpg'
img = cv.imread(fn)
hsv = cv.cvtColor(img, cv.COLOR_BGR2HSV)
thresh = cv.inRange(hsv, hsv_min, hsv_max)
contours0, hierarchy = cv.findContours(thresh.copy(), cv.RETR_TREE,
cv.CHAIN_APPROX_SIMPLE)
for cnt in contours0:
if len(cnt) > 6:
ellipse = cv.fitEllipse(cnt)
cv.ellipse(img, ellipse, (0, 0, 255), 2)
cv.imshow('contours', img)
cv.waitKey()
cv.destroyAllWindows()
def predictCentroids(frame, radius, model, nFlies=2, bkg=None, dumpDir=None):
# pass frame through - network depends on the arena
# do some bluring and return potential bounding boxes
# use opencv to clear circle of frame, either before or after passing through network?
# then blur
# should we subtract a background?
try:
if dumpDir == '':
dumpDir = None
if bkg is None:
bkg = np.zeros(frame.shape)
# print('aha')
# frame = frame[:,:,2::-1]
# print(frame.shape)
frame = (1 - np.expand_dims(frame[:, :, :, 1], axis=-1)) * 255
# print('aww')
# print(frame.shape)
# print(frame.shape)
prediction = model.predict(frame)
# print('?')
if dumpDir is not None:
cv2.imwrite(dumpDir + 'frame.png', frame[0, :, :, 0])
cv2.imwrite(dumpDir + 'pred.png',
np.uint8((prediction[0, :, :, 0]) * 255 * 1))
cv2.imwrite(dumpDir + 'raw.png',
np.uint8((prediction[0, :, :, 0] - bkg) * 255 * 1))
cv2.imwrite(dumpDir + 'pos.png',
(prediction[0, :, :, 0] - bkg > 0.05) * 255)
cv2.imwrite(dumpDir + 'neg.png',
(prediction[0, :, :, 0] - bkg < 0) * 255)
pred_orig = prediction[0, :, :, 0]
prediction = prediction[0, :, :, 0] - bkg
prediction[prediction < 0] = 0
# sio.savemat('pred.mat',{'pred':prediction,'pred0':pred_orig,'bkg':bkg,'frame':frame})
mask = np.zeros(prediction.shape, np.uint8)
# print(prediction.shape)
# print(radius)
cv2.circle(
mask, (int(prediction.shape[0] / 2), int(prediction.shape[1] / 2)),
int(radius), 255, -1)
prediction[mask != 255] = 0
prediction = cv2.GaussianBlur(np.uint8(prediction * 255 * 6), (11, 11),
5)
# print(np.max(prediction))
prediction = (prediction > 30) * 255
# prediction = (prediction > 60)*255
# cv2.imwrite('pred_.jpg',np.uint8(prediction))
prediction = cv2.blur(prediction, (3, 3))
prediction = cv2.blur(prediction, (3, 3))
prediction = cv2.blur(prediction, (3, 3))
if dumpDir is not None:
cv2.imwrite(dumpDir + 'pred_.jpg', np.uint8(prediction * 255 * 10))
# prediction = (prediction > 150)*255
# now do some denoising (k-means)
contours = getFlyContours(np.uint8(prediction), nFlies)
markers = np.zeros((prediction.shape[0], prediction.shape[1], 1),
np.int32)
for cntInd, cnt in enumerate(contours):
cv2.drawContours(markers, contours, cntInd, cntInd + 1, -1)
fgObjects = np.zeros(prediction.shape, np.uint8)
fgObjects[np.logical_and(markers[:, :, 0] > 0,
prediction > 0)] = prediction[np.logical_and(
markers[:, :, 0] > 0, prediction > 0)]
kernel2 = cv2.getStructuringElement(cv2.MORPH_ELLIPSE, (3, 3))
cv2.erode(fgObjects, kernel2, fgObjects)
pts = np.vstack(np.nonzero(fgObjects)).astype(np.float32).T
pts = pts[:, 0:2]
numK = nFlies
term_crit = (cv2.TERM_CRITERIA_EPS, 30, 0.1)
bestLabelsKM = np.zeros(len(pts))
compactness, bestLabelsKM, centers = cv2.kmeans(
pts, numK, bestLabelsKM, term_crit, 10, cv2.KMEANS_PP_CENTERS)
bodyEllipses = np.zeros((2, 5), np.float16)
allRedLines = np.zeros((2, 4), np.float16)
ind = bestLabelsKM == 0
ptsBody = np.vstack((pts[ind[:, 0], 0], pts[ind[:, 0], 1])).T
flyEllipse = cv2.fitEllipse(ptsBody[:, ::-1])
bodyEllipses[0] = ellipseListToArray(flyEllipse)
thisLine = cv2.fitLine(ptsBody, cv2.DIST_L2, 0, 0.01, 0.01)
allRedLines[0] = np.squeeze(thisLine)
ind = bestLabelsKM == 1
ptsBody = np.vstack((pts[ind[:, 0], 0], pts[ind[:, 0], 1])).T
flyEllipse = cv2.fitEllipse(ptsBody[:, ::-1])
bodyEllipses[1] = ellipseListToArray(flyEllipse)
thisLine = cv2.fitLine(ptsBody, cv2.DIST_L2, 0, 0.01, 0.01)
allRedLines[1] = np.squeeze(thisLine)
if dumpDir is not None:
tmp = np.zeros((prediction.shape[0], prediction.shape[1], 3))
ind = bestLabelsKM == 0
pts2 = np.vstack((pts[ind[:, 0], 0], pts[ind[:, 0], 1])).T
for (x, y) in pts2:
tmp[int(x), int(y), 0] = 255
ind = bestLabelsKM == 1
pts2 = np.vstack((pts[ind[:, 0], 0], pts[ind[:, 0], 1])).T
for (x, y) in pts2:
tmp[int(x), int(y), 1] = 255
ind = bestLabelsKM >= 2
pts2 = np.vstack((pts[ind[:, 0], 0], pts[ind[:, 0], 1])).T
for (x, y) in pts2:
tmp[int(x), int(y), 2] = 255
cv2.imwrite(dumpDir + 'kMeans_' + str(numK) + '.jpg', tmp)
return prediction, centers, bodyEllipses, allRedLines
except:
return None, np.zeros((nFlies, 2)), np.zeros((nFlies, 5)), np.zeros(
(nFlies, 4))
criteria = (cv2.TERM_CRITERIA_EPS + cv2.TERM_CRITERIA_MAX_ITER, 10,
1.0)
# Apply KMeans
compactness, labels, centers = cv2.kmeans(hist, 2, None, criteria, 100,
cv2.KMEANS_RANDOM_CENTERS)
print(np.sqrt(compactness) / 10)
print(centers)
# center = pbcvt.findPupil(roi_gray, int(ex), int(ey), int(ew), int(eh))
ret, thresh = cv2.threshold(eye_roi_gray, centers[0] - 10, 255, 0)
# thresh = cv2.adaptiveThreshold(eye_roi_gray, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 115, 0)
contours, hierarchy = cv2.findContours(thresh, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
# cv2.drawContours(eye_roi_color, contours, -1, (0,0,255), 3)
for cont in contours:
if len(cont) > 5 and cv2.contourArea(cont) > 1000:
ellipse = cv2.fitEllipse(cont)
cv2.ellipse(eye_roi_color, ellipse, (0, 0, 255), 2)
cv2.circle(eye_roi_color,
(int(ellipse[0][0]), int(ellipse[0][1])), 2,
(255, 0, 0), 3)
# cv2.circle(eye_roi_color, center, 2, (0,255,0), 3)
# else:
# face = None
cv2.imshow("preview", roi_gray)
cv2.imshow("preview2", equalized)
cv2.imshow("preview3", thresh)
# if vout:
# vout.write(frame)
nf = nf + 1
def divide_shelter_once(self,
im,
filename,
pred,
pred_pro,
gt_ellip,
if_valid=False,
is_save=True):
'''
divide the shelter and not shelter
'''
pts = []
'''
_, p, hierarchy = cv2.findContours(pred, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
#tmp draw contours
sz = im.shape
c_im_show = np.zeros((sz[0], sz[1], 3))
cv2.drawContours(c_im_show, p, -1, (0, 255, 0), 1)
for i in range(len(p)):
for j in range(len(p[i])):
pts.append(p[i][j])
'''
sz = im.shape
im = cv2.cvtColor(im, cv2.COLOR_RGB2BGR)
#tmp
fn = filename.strip().decode('utf-8')
fn_full = '%s%s%s.bmp' % ('s8', 'img', fn.split('img')[1])
fn_full_path = os.path.join(cfgs.full_im_path, fn_full)
im_full = cv2.imread(fn_full_path)
im = cv2.resize(im_full, (sz[1], sz[0]), interpolation=cv2.INTER_CUBIC)
pred = remove_small_area(pred)
for ii in range(sz[0]):
for jj in range(sz[1]):
#if pred[ii][jj] > 0:
if pred[ii][jj] == 2:
pts.append([jj, ii])
#im[ii][jj] = 255
pts_ = np.array(pts)
if pts_.shape[0] > 5:
ellipse_info = cv2.fitEllipse(pts_)
ellipse_info_ = ellipse_info
#pred_ellip = np.array([ellipse_info[0][0], ellipse_info[0][1], ellipse_info[1][0], ellipse_info[1][1]])
if ellipse_info[2] > 150 or ellipse_info[2] < 30:
angle = 180
pred_ellip = np.array([
ellipse_info[0][0], ellipse_info[0][1], ellipse_info[1][0],
ellipse_info[1][1]
])
else:
angle = 90
pred_ellip = np.array([
ellipse_info[0][0], ellipse_info[0][1], ellipse_info[1][1],
ellipse_info[1][0]
])
ellipse_info = (tuple(
np.array([
ellipse_info[0][0], ellipse_info[0][1]
])), tuple(np.array([ellipse_info[1][0],
ellipse_info[1][1]])), angle)
loss = 1
else:
pred_ellip = np.array([0, 0, 0, 0])
ellipse_info = (tuple(np.array([0, 0])), tuple(np.array([0,
0])), 0)
loss = 1
if is_save:
'''
fn = filename.strip().decode('utf-8')
fn_full = '%s%s.bmp' % ('img', fn.split('img')[1])
im_full = cv2.imread(os.path.join(cfgs.full_im_path, fn_full))
im = cv2.resize(im_full, (sz[1], sz[0]), interpolation=cv2.INTER_CUBIC)
'''
#save worse result
error_path = cfgs.error_path
#im = cv2.cvtColor(im, cv2.COLOR_RGB2BGR)
cv2.ellipse(im, ellipse_info, (0, 255, 0), 1)
new_line = '%s %d %d %d %d %d\n' % (
fn_full_path, ellipse_info[0][0], ellipse_info[0][1],
ellipse_info[1][0], ellipse_info[1][1], 0)
with open(cfgs.list_save_path, 'a') as correct_txt:
correct_txt.write(new_line)
'''
part_label=ellipse_my(ellipse_info)
c_x=ellipse_info[0][0]
c_y=ellipse_info[0][1]
for i in range(len(part_label)):
x=int(part_label[i][1])
y=int(part_label[i][0])
if y<len(im) and x<len(im[0]):
im[y][x][0]=0
im[y][x][1]=255
im[y][x][2]=0
p_i_x,p_i_y,p_o_x,p_o_y=get_nine_half(c_x,c_y,x,y)
#p_i_y,p_i_x,p_o_y,p_o_x=get_nine_half(c_x,c_y,x,y)
cv2.line(im,(p_i_x,p_i_y),(p_o_x,p_o_y),(0,255,0),1)
'''
if loss > cfgs.loss_thresh:
if loss > 500:
loss = 500
path_ = os.path.join(
error_path,
filename.strip().decode('utf-8') + '_' + str(int(loss)) +
'.bmp')
cv2.imwrite(path_, im)
else:
path_ = os.path.join(
error_path + '_better',
filename.strip().decode('utf-8') + '_' + str(int(loss)) +
'.bmp')
cv2.imwrite(path_, im)
return loss
def detect(self, frame, user_roi, visualize=False):
u_r = user_roi
if self.window_should_open:
self.open_window((frame.img.shape[1], frame.img.shape[0]))
if self.window_should_close:
self.close_window()
if self._window:
debug_img = np.zeros(frame.img.shape, frame.img.dtype)
#get the user_roi
img = frame.img
r_img = img[u_r.view]
gray_img = cv2.cvtColor(r_img, cv2.COLOR_BGR2GRAY)
# coarse pupil detection
integral = cv2.integral(gray_img)
integral = np.array(integral, dtype=c_float)
x, y, w, response = eye_filter(integral, self.coarse_filter_min,
self.coarse_filter_max)
p_r = Roi(gray_img.shape)
if w > 0:
p_r.set((y, x, y + w, x + w))
else:
p_r.set((0, 0, -1, -1))
coarse_pupil_center = x + w / 2., y + w / 2.
coarse_pupil_width = w / 2.
padding = coarse_pupil_width / 4.
pupil_img = gray_img[p_r.view]
# binary thresholding of pupil dark areas
hist = cv2.calcHist([pupil_img], [0], None, [256], [
0, 256
]) #(images, channels, mask, histSize, ranges[, hist[, accumulate]])
bins = np.arange(hist.shape[0])
spikes = bins[hist[:, 0] >
40] # every intensity seen in more than 40 pixels
if spikes.shape[0] > 0:
lowest_spike = spikes.min()
highest_spike = spikes.max()
else:
lowest_spike = 200
highest_spike = 255
offset = self.intensity_range.value
spectral_offset = 5
if visualize:
# display the histogram
sx, sy = 100, 1
colors = ((0, 0, 255), (255, 0, 0), (255, 255, 0), (255, 255, 255))
h, w, chan = img.shape
hist *= 1. / hist.max() # normalize for display
for i, h in zip(bins, hist[:, 0]):
c = colors[1]
cv2.line(img, (w, int(i * sy)), (w - int(h * sx), int(i * sy)),
c)
cv2.line(img, (w, int(lowest_spike * sy)),
(int(w - .5 * sx), int(lowest_spike * sy)), colors[0])
cv2.line(img, (w, int((lowest_spike + offset) * sy)),
(int(w - .5 * sx), int(
(lowest_spike + offset) * sy)), colors[2])
cv2.line(img, (w, int((highest_spike) * sy)),
(int(w - .5 * sx), int((highest_spike) * sy)), colors[0])
cv2.line(
img, (w, int((highest_spike - spectral_offset) * sy)),
(int(w - .5 * sx), int(
(highest_spike - spectral_offset) * sy)), colors[3])
# create dark and spectral glint masks
self.bin_thresh.value = lowest_spike
binary_img = bin_thresholding(pupil_img,
image_upper=lowest_spike + offset)
kernel = cv2.getStructuringElement(cv2.MORPH_ELLIPSE, (7, 7))
cv2.dilate(binary_img, kernel, binary_img, iterations=2)
spec_mask = bin_thresholding(pupil_img,
image_upper=highest_spike -
spectral_offset)
cv2.erode(spec_mask, kernel, spec_mask, iterations=1)
kernel = cv2.getStructuringElement(cv2.MORPH_ELLIPSE, (9, 9))
#open operation to remove eye lashes
pupil_img = cv2.morphologyEx(pupil_img, cv2.MORPH_OPEN, kernel)
if self.blur > 1:
pupil_img = cv2.medianBlur(pupil_img, self.blur.value)
edges = cv2.Canny(pupil_img,
self.canny_thresh,
self.canny_thresh * self.canny_ratio,
apertureSize=self.canny_aperture)
# remove edges in areas not dark enough and where the glint is (spectral refelction from IR leds)
edges = cv2.min(edges, spec_mask)
edges = cv2.min(edges, binary_img)
overlay = img[u_r.view][p_r.view]
if visualize:
b, g, r = overlay[:, :, 0], overlay[:, :, 1], overlay[:, :, 2]
g[:] = cv2.max(g, edges)
b[:] = cv2.max(b, binary_img)
b[:] = cv2.min(b, spec_mask)
# draw a frame around the automatic pupil ROI in overlay.
overlay[::2, 0] = 255 #yeay numpy broadcasting
overlay[::2, -1] = 255
overlay[0, ::2] = 255
overlay[-1, ::2] = 255
# draw a frame around the area we require the pupil center to be.
overlay[padding:-padding:4, padding] = 255
overlay[padding:-padding:4, -padding] = 255
overlay[padding, padding:-padding:4] = 255
overlay[-padding, padding:-padding:4] = 255
if visualize:
c = (100., frame.img.shape[0] - 100.)
e_max = ((c), (self.pupil_max.value, self.pupil_max.value), 0)
e_recent = ((c), (self.target_size.value, self.target_size.value),
0)
e_min = ((c), (self.pupil_min.value, self.pupil_min.value), 0)
cv2.ellipse(frame.img, e_min, (0, 0, 255), 1)
cv2.ellipse(frame.img, e_recent, (0, 255, 0), 1)
cv2.ellipse(frame.img, e_max, (0, 0, 255), 1)
#get raw edge pix for later
raw_edges = cv2.findNonZero(edges)
def ellipse_true_support(e, raw_edges):
a, b = e[1][0] / 2., e[1][
1] / 2. # major minor radii of candidate ellipse
ellipse_circumference = np.pi * abs(3 * (a + b) -
np.sqrt(10 * a * b + 3 *
(a**2 + b**2)))
distances = dist_pts_ellipse(e, raw_edges)
support_pixels = raw_edges[distances <= 1.3]
# support_ratio = support_pixel.shape[0]/ellipse_circumference
return support_pixels, ellipse_circumference
# if we had a good ellipse before ,let see if it is still a good first guess:
if self.strong_prior:
e = p_r.sub_vector(u_r.sub_vector(self.strong_prior[0])
), self.strong_prior[1], self.strong_prior[2]
self.strong_prior = None
if raw_edges is not None:
support_pixels, ellipse_circumference = ellipse_true_support(
e, raw_edges)
support_ratio = support_pixels.shape[0] / ellipse_circumference
if support_ratio >= self.strong_perimeter_ratio_range[0]:
refit_e = cv2.fitEllipse(support_pixels)
if self._window:
cv2.ellipse(debug_img, e, (255, 100, 100), thickness=4)
cv2.ellipse(debug_img,
refit_e, (0, 0, 255),
thickness=1)
e = refit_e
self.strong_prior = u_r.add_vector(p_r.add_vector(
e[0])), e[1], e[2]
goodness = support_ratio
pupil_ellipse = {}
pupil_ellipse['confidence'] = goodness
pupil_ellipse['ellipse'] = e
pupil_ellipse['roi_center'] = e[0]
pupil_ellipse['major'] = max(e[1])
pupil_ellipse['minor'] = min(e[1])
pupil_ellipse['axes'] = e[1]
pupil_ellipse['angle'] = e[2]
e_img_center = u_r.add_vector(p_r.add_vector(e[0]))
norm_center = normalize(
e_img_center, (frame.img.shape[1], frame.img.shape[0]),
flip_y=True)
pupil_ellipse['norm_pupil'] = norm_center
pupil_ellipse['center'] = e_img_center
pupil_ellipse['timestamp'] = frame.timestamp
self.target_size.value = max(e[1])
self.confidence.value = goodness
self.confidence_hist.append(goodness)
self.confidence_hist[:-200] = []
if self._window:
#draw a little animation of confidence
cv2.putText(debug_img, 'good',
(410, debug_img.shape[0] - 100),
cv2.FONT_HERSHEY_SIMPLEX, 0.3,
(255, 100, 100))
cv2.putText(
debug_img, 'threshold',
(410, debug_img.shape[0] -
int(self.final_perimeter_ratio_range[0] * 100)),
cv2.FONT_HERSHEY_SIMPLEX, 0.3, (255, 100, 100))
cv2.putText(debug_img, 'no detection',
(410, debug_img.shape[0] - 10),
cv2.FONT_HERSHEY_SIMPLEX, 0.3,
(255, 100, 100))
lines = np.array(
[[[2 * x, debug_img.shape[0] - int(100 * y)],
[2 * x, debug_img.shape[0]]]
for x, y in enumerate(self.confidence_hist)])
cv2.polylines(debug_img,
lines,
isClosed=False,
color=(255, 100, 100))
self.gl_display_in_window(debug_img)
return pupil_ellipse
# from edges to contours
contours, hierarchy = cv2.findContours(edges,
mode=cv2.RETR_LIST,
method=cv2.CHAIN_APPROX_NONE,
offset=(0, 0)) #TC89_KCOS
# contours is a list containing array([[[108, 290]],[[111, 290]]], dtype=int32) shape=(number of points,1,dimension(2) )
### first we want to filter out the bad stuff
# to short
good_contours = [
c for c in contours if c.shape[0] > self.min_contour_size.value
]
# now we learn things about each contour through looking at the curvature.
# For this we need to simplyfy the contour so that pt to pt angles become more meaningfull
aprox_contours = [
cv2.approxPolyDP(c, epsilon=1.5, closed=False)
for c in good_contours
]
if self._window:
x_shift = coarse_pupil_width * 2
color = zip(range(0, 250, 15),
range(0, 255, 15)[::-1], range(230, 250))
split_contours = []
for c in aprox_contours:
curvature = GetAnglesPolyline(c)
# we split whenever there is a real kink (abs(curvature)<right angle) or a change in the genreal direction
kink_idx = find_kink_and_dir_change(curvature, 80)
segs = split_at_corner_index(c, kink_idx)
#TODO: split at shart inward turns
for s in segs:
if s.shape[0] > 2:
split_contours.append(s)
if self._window:
c = color.pop(0)
color.append(c)
s = s.copy()
s[:, :,
0] += debug_img.shape[1] - coarse_pupil_width * 2
# s[:,:,0] += x_shift
# x_shift += 5
cv2.polylines(debug_img, [s],
isClosed=False,
color=map(lambda x: x, c),
thickness=1,
lineType=4) #cv2.CV_AA
split_contours.sort(key=lambda x: -x.shape[0])
# print [x.shape[0]for x in split_contours]
if len(split_contours) == 0:
# not a single usefull segment found -> no pupil found
self.confidence.value = 0
self.confidence_hist.append(0)
if self._window:
self.gl_display_in_window(debug_img)
return {'timestamp': frame.timestamp, 'norm_pupil': None}
# removing stubs makes combinatorial search feasable
split_contours = [c for c in split_contours if c.shape[0] > 3]
def ellipse_filter(e):
in_center = padding < e[0][
1] < pupil_img.shape[0] - padding and padding < e[0][
0] < pupil_img.shape[1] - padding
if in_center:
is_round = min(e[1]) / max(e[1]) >= self.min_ratio
if is_round:
right_size = self.pupil_min.value <= max(
e[1]) <= self.pupil_max.value
if right_size:
return True
return False
def ellipse_on_blue(e):
center_on_dark = binary_img[e[0][1], e[0][0]]
return bool(center_on_dark)
def ellipse_support_ratio(e, contours):
a, b = e[1][0] / 2., e[1][
1] / 2. # major minor radii of candidate ellipse
ellipse_area = np.pi * a * b
ellipse_circumference = np.pi * abs(3 * (a + b) -
np.sqrt(10 * a * b + 3 *
(a**2 + b**2)))
actual_area = cv2.contourArea(
cv2.convexHull(np.concatenate(contours)))
actual_contour_length = sum(
[cv2.arcLength(c, closed=False) for c in contours])
area_ratio = actual_area / ellipse_area
perimeter_ratio = actual_contour_length / ellipse_circumference #we assume here that the contour lies close to the ellipse boundary
return perimeter_ratio, area_ratio
def final_fitting(c, edges):
#use the real edge pixels to fit, not the aproximated contours
support_mask = np.zeros(edges.shape, edges.dtype)
cv2.polylines(support_mask,
c,
isClosed=False,
color=(255, 255, 255),
thickness=2)
# #draw into the suport mast with thickness 2
new_edges = cv2.min(edges, support_mask)
new_contours = cv2.findNonZero(new_edges)
if self._window:
new_edges[new_edges != 0] = 255
overlay[:, :, 1] = cv2.max(overlay[:, :, 1], new_edges)
overlay[:, :, 2] = cv2.max(overlay[:, :, 2], new_edges)
overlay[:, :, 2] = cv2.max(overlay[:, :, 2], new_edges)
new_e = cv2.fitEllipse(new_contours)
return new_e, new_contours
# finding poential candidates for ellipse seeds that describe the pupil.
strong_seed_contours = []
weak_seed_contours = []
for idx, c in enumerate(split_contours):
if c.shape[0] >= 5:
e = cv2.fitEllipse(c)
# is this ellipse a plausible canditate for a pupil?
if ellipse_filter(e):
distances = dist_pts_ellipse(e, c)
fit_variance = np.sum(distances**2) / float(
distances.shape[0])
if fit_variance <= self.inital_ellipse_fit_threshhold:
# how much ellipse is supported by this contour?
perimeter_ratio, area_ratio = ellipse_support_ratio(
e, [c])
# logger.debug('Ellipse no %s with perimeter_ratio: %s , area_ratio: %s'%(idx,perimeter_ratio,area_ratio))
if self.strong_perimeter_ratio_range[
0] <= perimeter_ratio <= self.strong_perimeter_ratio_range[
1] and self.strong_area_ratio_range[
0] <= area_ratio <= self.strong_area_ratio_range[
1]:
strong_seed_contours.append(idx)
if self._window:
cv2.polylines(debug_img, [c],
isClosed=False,
color=(255, 100, 100),
thickness=4)
e = (e[0][0] + debug_img.shape[1] -
coarse_pupil_width * 4,
e[0][1]), e[1], e[2]
cv2.ellipse(debug_img,
e,
color=(255, 100, 100),
thickness=3)
else:
weak_seed_contours.append(idx)
if self._window:
cv2.polylines(debug_img, [c],
isClosed=False,
color=(255, 0, 0),
thickness=2)
e = (e[0][0] + debug_img.shape[1] -
coarse_pupil_width * 4,
e[0][1]), e[1], e[2]
cv2.ellipse(debug_img, e, color=(255, 0, 0))
sc = np.array(split_contours)
if strong_seed_contours:
seed_idx = strong_seed_contours
elif weak_seed_contours:
seed_idx = weak_seed_contours
if not (strong_seed_contours or weak_seed_contours):
if self._window:
self.gl_display_in_window(debug_img)
self.confidence.value = 0
self.confidence_hist.append(0)
return {'timestamp': frame.timestamp, 'norm_pupil': None}
# if self._window:
# cv2.polylines(debug_img,[split_contours[i] for i in seed_idx],isClosed=False,color=(255,255,100),thickness=3)
def ellipse_eval(contours):
c = np.concatenate(contours)
e = cv2.fitEllipse(c)
d = dist_pts_ellipse(e, c)
fit_variance = np.sum(d**2) / float(d.shape[0])
return fit_variance <= self.inital_ellipse_fit_threshhold
solutions = pruning_quick_combine(split_contours,
ellipse_eval,
seed_idx,
max_evals=1000,
max_depth=5)
solutions = filter_subsets(solutions)
ratings = []
for s in solutions:
try:
e = cv2.fitEllipse(np.concatenate(sc[s]))
if self._window:
cv2.ellipse(debug_img, e, (0, 150, 100))
support_pixels, ellipse_circumference = ellipse_true_support(
e, raw_edges)
support_ratio = support_pixels.shape[0] / ellipse_circumference
# TODO: refine the selection of final canditate
if support_ratio >= self.final_perimeter_ratio_range[
0] and ellipse_filter(e):
ratings.append(support_pixels.shape[0])
if support_ratio >= self.strong_perimeter_ratio_range[0]:
self.strong_prior = u_r.add_vector(p_r.add_vector(
e[0])), e[1], e[2]
if self._window:
cv2.ellipse(debug_img,
e, (0, 255, 255),
thickness=2)
else:
#not a valid solution, bad rating
ratings.append(-1)
except:
logger.warning(
'0-d arrays cant be concatenated. ignoring this result')
#not a valid solution, bad rating
ratings.append(-1)
# selected ellipse
if max(ratings) == -1:
#no good final ellipse found
if self._window:
self.gl_display_in_window(debug_img)
self.confidence.value = 0
self.confidence_hist.append(0)
return {'timestamp': frame.timestamp, 'norm_pupil': None}
best = solutions[ratings.index(max(ratings))]
e = cv2.fitEllipse(np.concatenate(sc[best]))
#final calculation of goodness of fit
support_pixels, ellipse_circumference = ellipse_true_support(
e, raw_edges)
support_ratio = support_pixels.shape[0] / ellipse_circumference
goodness = min(1., support_ratio)
#final fitting and return of result
new_e, final_edges = final_fitting(sc[best], edges)
size_dif = abs(1 - max(e[1]) / max(new_e[1]))
if ellipse_filter(new_e) and size_dif < .3:
if self._window:
cv2.ellipse(debug_img, new_e, (0, 255, 0))
e = new_e
pupil_ellipse = {}
pupil_ellipse['confidence'] = goodness
pupil_ellipse['ellipse'] = e
pupil_ellipse['pos_in_roi'] = e[0]
pupil_ellipse['major'] = max(e[1])
pupil_ellipse['apparent_pupil_size'] = max(e[1])
pupil_ellipse['minor'] = min(e[1])
pupil_ellipse['axes'] = e[1]
pupil_ellipse['angle'] = e[2]
e_img_center = u_r.add_vector(p_r.add_vector(e[0]))
norm_center = normalize(e_img_center,
(frame.img.shape[1], frame.img.shape[0]),
flip_y=True)
pupil_ellipse['norm_pupil'] = norm_center
pupil_ellipse['center'] = e_img_center
pupil_ellipse['timestamp'] = frame.timestamp
self.target_size.value = max(e[1])
self.confidence.value = goodness
self.confidence_hist.append(goodness)
self.confidence_hist[:-200] = []
if self._window:
#draw a little animation of confidence
cv2.putText(debug_img, 'good', (410, debug_img.shape[0] - 100),
cv2.FONT_HERSHEY_SIMPLEX, 0.3, (255, 100, 100))
cv2.putText(debug_img, 'threshold',
(410, debug_img.shape[0] -
int(self.final_perimeter_ratio_range[0] * 100)),
cv2.FONT_HERSHEY_SIMPLEX, 0.3, (255, 100, 100))
cv2.putText(debug_img, 'no detection',
(410, debug_img.shape[0] - 10),
cv2.FONT_HERSHEY_SIMPLEX, 0.3, (255, 100, 100))
lines = np.array([[[2 * x, debug_img.shape[0] - int(100 * y)],
[2 * x, debug_img.shape[0]]]
for x, y in enumerate(self.confidence_hist)])
cv2.polylines(debug_img,
lines,
isClosed=False,
color=(255, 100, 100))
self.gl_display_in_window(debug_img)
return pupil_ellipse
def FitVia_RANSAC2(pnts,
input_pts=5,
max_itts=5,
max_refines=3,
max_perc_inliers=80.0):
'''
Robust ellipse fitting to segmented boundary points
Parameters
----
pnts : n x 2 array of integers
Candidate pupil-iris boundary points from edge detection
roi : 2D scalar array
Grayscale image of pupil-iris region for display only
max_itts : integer
Maximum RANSAC ellipse candidate iterations
max_refines : integer
Maximum RANSAC ellipse inlier refinements
max_perc_inliers : float
Maximum inlier percentage of total points for convergence
Returns
----
best_ellipse : tuple of tuples
Best fitted ellipse parameters ((x0, y0), (a,b), theta)
'''
# Debug flag
DEBUG = False
# Output flags
#graphics = cfg.getboolean('OUTPUT', 'graphics')
# Suppress invalid values
np.seterr(invalid='ignore')
# Maximum normalize
# d error squared for inliers
max_norm_err_sq = 3
norm_err_score = np.inf
# Tiny circle init
best_ellipse = cv2.fitEllipse(pnts)
((x, y), (MA_, ma), angle) = best_ellipse
bestInliers = np.zeros((5, 2))
inlier_count = 0
inliers = []
bestInliers = pnts
#print(bestInliers)
#print(pnts)
# Create display window and init overlay image
#if graphics:
# cv2.namedWindow('RANSAC', cv2.WINDOW_AUTOSIZE)
# Count pnts (n x 2)
n_pnts = pnts.shape[0]
#print('npnts: ',n_pnts)
# Break if too few points to fit ellipse (RARE)
if n_pnts < input_pts:
return best_ellipse
# random.seed()
# Ransac iterations
for itt in range(0, max_itts):
# Select 5 points at random
sample_pnts = np.asarray(random.sample(list(pnts), input_pts))
#print(sample_pnts)
# Fit ellipse to points
ellipse = cv2.fitEllipse(sample_pnts)
((x, y), (MA, ma), angle) = ellipse
if (MA == 0):
continue
if (np.abs(MA - MA_) > 50):
continue
# Calculate normalized errors for all points
norm_err = EllipseNormError(pnts, ellipse)
#print(norm_err)
# Identify inliers
inliers = np.nonzero(np.abs(norm_err) <= max_norm_err_sq)[0]
# Update inliers set
inlier_pnts = pnts[inliers]
#print('inpnts: ',inlier_pnts.shape[0])
# Protect ellipse fitting from too few points
# End refinement
# Count inliers (n x 2)
n_inliers = inliers.size
perc_inliers = (n_inliers * 100.0) / n_pnts
# Update overlay image and display
#if graphics:
# overlay = cv2.cvtColor(roi/2,cv2.COLOR_GRAY2RGB)
# OverlayRANSACFit(overlay, pnts, inlier_pnts, ellipse)
# cv2.imshow('RANSAC', overlay)
# cv2.waitKey(5)
# Update best ellipse
if n_inliers > inlier_count:
best_ellipse = ellipse
bestInliers = inlier_pnts
inlier_count = n_inliers
norm_err_score = np.average(np.abs(norm_err))
elif n_inliers == inlier_count:
if np.average(np.abs(norm_err)) < norm_err_score:
best_ellipse = ellipse
bestInliers = inlier_pnts
inlier_count = n_inliers
norm_err_score = np.average(np.abs(norm_err))
#print(perc_inliers)
#if perc_inliers > max_perc_inliers:
# if DEBUG: print('Break Max Perc Inliers')
# break
return [best_ellipse, bestInliers]
def FitEllipse_RANSAC_Support(pnts,
roi,
cfg,
max_itts=5,
max_refines=3,
max_perc_inliers=95.0):
'''
Robust ellipse fitting to segmented boundary with image support
Parameters
----
pnts : n x 2 array of integers
Candidate pupil-iris boundary points from edge detection
roi : 2D scalar array
Grayscale image of pupil-iris region for support calculation.
max_itts : integer
Maximum RANSAC ellipse candidate iterations
max_refines : integer
Maximum RANSAC ellipse inlier refinements
max_perc_inliers : float
Maximum inlier percentage of total points for convergence
Returns
----
best_ellipse : tuple of tuples
Best fitted ellipse parameters ((x0, y0), (a,b), theta)
'''
# Debug flag
DEBUG = False
# Output flags
graphics = cfg.getboolean('OUTPUT', 'graphics')
# Suppress invalid values
np.seterr(invalid='ignore')
# Maximum normalized error squared for inliers
max_norm_err_sq = 2.0
# Tiny circle init
best_ellipse = ((0, 0), (1e-6, 1e-6), 0)
# High support is better, so init with -Infinity
best_support = -np.inf
# Create display window and init overlay image
if graphics:
cv2.namedWindow('RANSAC', cv2.WINDOW_AUTOSIZE)
# Count pnts (n x 2)
n_pnts = pnts.shape[0]
# Break if too few points to fit ellipse (RARE)
if n_pnts < 5:
return best_ellipse
# Precalculate roi intensity gradients
dIdx = cv2.Sobel(roi, cv2.CV_32F, 1, 0)
dIdy = cv2.Sobel(roi, cv2.CV_32F, 0, 1)
# Ransac iterations
for itt in range(0, max_itts):
# Select 5 points at random
sample_pnts = np.asarray(random.sample(list(pnts), 5))
# Fit ellipse to points
ellipse = cv2.fitEllipse(sample_pnts)
# Dot product of ellipse and image gradients for support calculation
grad_dot = EllipseImageGradDot(sample_pnts, ellipse, dIdx, dIdy)
# Skip this iteration if one or more dot products are <= 0
# implying that the ellipse is unlikely to bound the pupil
if all(grad_dot > 0):
# Refine inliers iteratively
for refine in range(0, max_refines):
# Calculate normalized errors for all points
norm_err = EllipseNormError(pnts, ellipse)
# Identify inliers
inliers = np.nonzero(norm_err**2 < max_norm_err_sq)[0]
# Update inliers set
inlier_pnts = pnts[inliers]
# Protect ellipse fitting from too few points
if inliers.size < 5:
if DEBUG: print('Break < 5 Inliers (During Refine)')
break
# Fit ellipse to refined inlier set
ellipse = cv2.fitEllipse(inlier_pnts)
# End refinement
# Count inliers (n x 2)
n_inliers = inliers.size
perc_inliers = (n_inliers * 100.0) / n_pnts
# Calculate support for the refined inliers
support = EllipseSupport(inlier_pnts, ellipse, dIdx, dIdy)
# Report on RANSAC progress
if DEBUG:
print('RANSAC %d,%d : %0.3f (%0.1f)' %
(itt, refine, support, best_support))
# Update overlay image and display
if graphics:
overlay = cv2.cvtColor(roi / 2, cv2.COLOR_GRAY2RGB)
OverlayRANSACFit(overlay, pnts, inlier_pnts, ellipse)
cv2.imshow('RANSAC', overlay)
cv2.waitKey(5)
# Update best ellipse
if support > best_support:
best_support = support
best_ellipse = ellipse
else:
# Ellipse gradients did not match image gradients
support = 0.0
perc_inliers = 0.0
if perc_inliers > max_perc_inliers:
if DEBUG: print('Break Max Perc Inliers')
break
return best_ellipse, inlier_pnts
def caculate_ellip_accu_once(im,
filename,
pred,
pred_pro,
gt_ellip,
if_valid=False):
#gt_ellipse [(x,y), w, h]
pts = []
_, p, hierarchy = cv2.findContours(pred, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
#tmp
sz = im.shape
c_im_show = np.zeros((sz[0], sz[1], 3))
cv2.drawContours(c_im_show, p, -1, (0, 255, 0), 1)
#contours_path_ = os.path.join(error_path, filename.strip().decode('utf-8')+'_'+str(int(loss))+'_contour.bmp')
#cv2.imwrite(contours_path_, c_im_show)
for i in range(len(p)):
for j in range(len(p[i])):
pts.append(p[i][j])
pts_ = np.array(pts)
if pts_.shape[0] > 5:
ellipse_info = cv2.fitEllipse(pts_)
pred_ellip = np.array([
ellipse_info[0][0], ellipse_info[0][1], ellipse_info[1][0],
ellipse_info[1][1]
])
ellipse_info = (tuple(
np.array([ellipse_info[0][0], ellipse_info[0][1]])),
tuple(
np.array([ellipse_info[1][0],
ellipse_info[1][1]])), 0)
else:
pred_ellip = np.array([0, 0, 0, 0])
ellipse_info = (tuple(np.array([0, 0])), tuple(np.array([0, 0])), 0)
sz_ = im.shape
loss = np.sum(np.power(
(np.array(gt_ellip) - pred_ellip), 2)) / (sz_[0] * sz_[1])
#save worse result
if if_valid:
error_path = cfgs.error_path + '_valid'
else:
error_path = cfgs.error_path
#tmp
contours_path_ = os.path.join(
error_path,
filename.strip().decode('utf-8') + '_' + str(int(loss)) +
'_contour.bmp')
cv2.imwrite(contours_path_, c_im_show)
if loss > cfgs.loss_thresh:
im = cv2.cvtColor(im, cv2.COLOR_RGB2BGR)
cv2.ellipse(im, ellipse_info, (0, 255, 0), 1)
gt_ellip_info = (tuple(np.array([gt_ellip[0], gt_ellip[1]])),
tuple(np.array([gt_ellip[2], gt_ellip[3]])), 0)
cv2.ellipse(im, gt_ellip_info, (0, 0, 255), 1)
path_ = os.path.join(
error_path,
filename.strip().decode('utf-8') + '_' + str(int(loss)) + '.bmp')
cv2.imwrite(path_, im)
#heatmap
heat_map = density_heatmap(pred_pro[:, :, 1])
cv2.imwrite(
os.path.join(error_path,
filename.strip().decode('utf-8') + '_heatseq_.bmp'),
heat_map)
contours_path_ = os.path.join(
error_path,
filename.strip().decode('utf-8') + '_' + str(int(loss)) +
'_contour.bmp')
cv2.imwrite(contours_path_, c_im_show)
return loss
def divide_shelter_once(self,
im,
filename,
pred,
pred_pro,
gt_ellip,
if_valid=False,
is_save=True):
'''
divide the shelter and not shelter
'''
pts = []
'''
_, p, hierarchy = cv2.findContours(pred, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
#tmp draw contours
sz = im.shape
c_im_show = np.zeros((sz[0], sz[1], 3))
cv2.drawContours(c_im_show, p, -1, (0, 255, 0), 1)
for i in range(len(p)):
for j in range(len(p[i])):
pts.append(p[i][j])
'''
sz = im.shape
im = cv2.cvtColor(im, cv2.COLOR_RGB2BGR)
#tmp
fn = filename.strip().decode('utf-8')
fn_full = '%s%s.bmp' % ('img', fn.split('img')[1])
im_full = cv2.imread(os.path.join(cfgs.full_im_path, fn_full))
im = cv2.resize(im_full, (sz[1], sz[0]), interpolation=cv2.INTER_CUBIC)
for ii in range(sz[0]):
for jj in range(sz[1]):
if pred[ii][jj] > 0:
pts.append([jj, ii])
im[ii][jj] = 255
pts_ = np.array(pts)
if pts_.shape[0] > 5:
ellipse_info = cv2.fitEllipse(pts_)
ellipse_info_ = ellipse_info
#pred_ellip = np.array([ellipse_info[0][0], ellipse_info[0][1], ellipse_info[1][0], ellipse_info[1][1]])
if ellipse_info[2] > 150 or ellipse_info[2] < 30:
angle = 180
pred_ellip = np.array([
ellipse_info[0][0], ellipse_info[0][1], ellipse_info[1][0],
ellipse_info[1][1]
])
else:
angle = 90
pred_ellip = np.array([
ellipse_info[0][0], ellipse_info[0][1], ellipse_info[1][1],
ellipse_info[1][0]
])
ellipse_info = (tuple(
np.array([
ellipse_info[0][0], ellipse_info[0][1]
])), tuple(np.array([ellipse_info[1][0],
ellipse_info[1][1]])), angle)
loss = self.haus_loss(pred_ellip, gt_ellip)
else:
pred_ellip = np.array([0, 0, 0, 0])
ellipse_info = (tuple(np.array([0, 0])), tuple(np.array([0,
0])), 0)
loss = self.ellip_loss(pred_ellip, gt_ellip)
#loss = np.sum(np.power((np.array(gt_ellip)-pred_ellip), 2)) / (gt_ellip[2]*gt_ellip[3]) * 1000
if is_save:
'''
fn = filename.strip().decode('utf-8')
fn_full = '%s%s.bmp' % ('img', fn.split('img')[1])
im_full = cv2.imread(os.path.join(cfgs.full_im_path, fn_full))
im = cv2.resize(im_full, (sz[1], sz[0]), interpolation=cv2.INTER_CUBIC)
'''
#save worse result
error_path = cfgs.error_path
#im = cv2.cvtColor(im, cv2.COLOR_RGB2BGR)
cv2.ellipse(im, ellipse_info, (0, 255, 0), 1)
gt_ellip_info = (tuple(np.array([gt_ellip[0], gt_ellip[1]])),
tuple(np.array([gt_ellip[2], gt_ellip[3]])), 0)
cv2.ellipse(im, gt_ellip_info, (0, 0, 255), 1)
'''
print('filename: ', fn, ' loss: ', loss)
print('gt_ellipse_info: ', gt_ellip)
print('pred_ellipse_info: ', pred_ellip)
print('gt_ellipse_info: ', gt_ellip_info)
print('pred_ellipse_info: ', ellipse_info_)
print('gt_ellipse_info: ', gt_ellip_info)
print('pred_ellipse_info: ', ellipse_info)
'''
if loss > cfgs.loss_thresh:
if loss > 500:
loss = 500
path_ = os.path.join(
error_path,
filename.strip().decode('utf-8') + '_' + str(int(loss)) +
'.bmp')
cv2.imwrite(path_, im)
else:
path_ = os.path.join(
error_path + '_better',
filename.strip().decode('utf-8') + '_' + str(int(loss)) +
'.bmp')
cv2.imwrite(path_, im)
return loss
def divide_shelter_once(im,
filename,
pred,
pred_pro,
gt_ellip,
if_valid=False):
'''
divide the shelter and not shelter
'''
pts = []
_, p, hierarchy = cv2.findContours(pred, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
#tmp
sz = im.shape
c_im_show = np.zeros((sz[0], sz[1], 3))
cv2.drawContours(c_im_show, p, -1, (0, 255, 0), 1)
for i in range(len(p)):
for j in range(len(p[i])):
pts.append(p[i][j])
pts_ = np.array(pts)
if pts_.shape[0] > 5:
ellipse_info = cv2.fitEllipse(pts_)
pred_ellip = np.array([
ellipse_info[0][0], ellipse_info[0][1], ellipse_info[1][0],
ellipse_info[1][1]
])
ellipse_info = (tuple(
np.array([ellipse_info[0][0], ellipse_info[0][1]])),
tuple(
np.array([ellipse_info[1][0],
ellipse_info[1][1]])), 0)
else:
pred_ellip = np.array([0, 0, 0, 0])
ellipse_info = (tuple(np.array([0, 0])), tuple(np.array([0, 0])), 0)
loss = np.sum(np.power((np.array(gt_ellip) - pred_ellip),
2)) / (gt_ellip[2] * gt_ellip[3]) * 1000
#save worse result
error_path = cfgs.error_path
im = cv2.cvtColor(im, cv2.COLOR_RGB2BGR)
cv2.ellipse(im, ellipse_info, (0, 255, 0), 1)
gt_ellip_info = (tuple(np.array([gt_ellip[0], gt_ellip[1]])),
tuple(np.array([gt_ellip[2], gt_ellip[3]])), 0)
cv2.ellipse(im, gt_ellip_info, (0, 0, 255), 1)
if loss > cfgs.loss_thresh:
path_ = os.path.join(
error_path,
filename.strip().decode('utf-8') + '_' + str(int(loss)) + '.bmp')
cv2.imwrite(path_, im)
#tmp
contours_path_ = os.path.join(
error_path,
filename.strip().decode('utf-8') + '_' + str(int(loss)) +
'_contour.bmp')
cv2.imwrite(contours_path_, c_im_show)
else:
path_ = os.path.join(
error_path + '_better',
filename.strip().decode('utf-8') + '_' + str(int(loss)) + '.bmp')
cv2.imwrite(path_, im)
#tmp
contours_path_ = os.path.join(
error_path + '_better',
filename.strip().decode('utf-8') + '_' + str(int(loss)) +
'_contour.bmp')
cv2.imwrite(contours_path_, c_im_show)
return loss
def FitEllipse_RobustLSQ(pnts, roi, cfg, max_refines=5, max_perc_inliers=95.0):
'''
Iterate ellipse fit on inliers
Parameters
----
pnts : n x 2 array of integers
Candidate pupil-iris boundary points from edge detection
roi : 2D scalar array
Grayscale image of pupil-iris region for display only
cfg : configuration structure
Configuration parameters
max_refines : integer
Maximum number of inlier refinements
max_perc_inliers : float
Maximum inlier percentage of total points for convergence
Returns
----
best_ellipse : tuple of tuples
Best fitted ellipse parameters ((x0, y0), (a,b), theta)
'''
# Debug flag
DEBUG = False
# Suppress invalid values
np.seterr(invalid='ignore')
# Maximum normalized error squared for inliers
max_norm_err_sq = 4.0
# Tiny circle init
best_ellipse = ((0, 0), (1e-6, 1e-6), 0)
# Count edge points
n_pnts = pnts.shape[0]
# Break if too few points to fit ellipse (RARE)
if n_pnts < 5:
return best_ellipse
# Fit ellipse to points
ellipse = cv2.fitEllipse(pnts)
# Refine inliers iteratively
for refine in range(0, max_refines):
# Calculate normalized errors for all points
norm_err = EllipseNormError(pnts, ellipse)
# Identify inliers
inliers = np.nonzero(norm_err**2 < max_norm_err_sq)[0]
# Update inliers set
inlier_pnts = pnts[inliers]
# Protect ellipse fitting from too few points
if inliers.size < 5:
if DEBUG: print('Break < 5 Inliers (During Refine)')
break
# Fit ellipse to refined inlier set
ellipse = cv2.fitEllipse(inlier_pnts)
# Count inliers (n x 2)
n_inliers = inliers.size
perc_inliers = (n_inliers * 100.0) / n_pnts
# Update best ellipse
best_ellipse = ellipse
if perc_inliers > max_perc_inliers:
if DEBUG: print('Break > maximum inlier percentage')
break
return best_ellipse, inlier_pnts
def callback(self, data):
if not self.is_moving:
try:
frame = self.bridge.imgmsg_to_cv2(data, "bgr8")
except CvBridgeError as e:
print("==[CAMERA MANAGER]==", e)
global counter
if counter > 4:
counter = 0
scale = 0.75
frame = (frame * scale).astype(np.uint8)
# Split frame into left and right halves
left_frame = frame[0:frame.shape[0], 0:frame.shape[1] / 3]
middle_frame = frame[0:frame.shape[0],
frame.shape[1] / 3:2 * frame.shape[1] / 3]
right_frame = frame[0:frame.shape[0],
2 * frame.shape[1] / 3:frame.shape[1]]
# Create list of left and right images
frames = [left_frame, middle_frame, right_frame]
for i, f in enumerate(frames):
kps, des = sift.detectAndCompute(f, None)
# frames[i] = cv2.drawKeypoints(f, kps, None, flags=cv2.DRAW_MATCHES_FLAGS_DRAW_RICH_KEYPOINTS) # draw SIFT points
# Convert current index to one_hot list representation for color assignment later
one_hot = [0, 0, 0]
one_hot[i] = 1
# Basic threshold example
gray = cv2.cvtColor(f, cv2.COLOR_RGBA2GRAY)
# CHANGE THESE VALUES TO CALIBRATE BOUNDING BOXES
# th, dst = cv2.threshold(gray, 77, 147, cv2.THRESH_BINARY)
dst = cv2.adaptiveThreshold(gray, 200,
cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY_INV, 17, 5)
# UNCOMMENT IF YOU WANT TO SEE OUTPUT OF OPENCV THRESHOLDING PROCESS
# cv2.imshow('test' + str(i), dst)
# Find contours of each partial frame and put bounding box around contour
_, contours, hierarchy = cv2.findContours(
dst, cv2.RETR_TREE, cv2.CHAIN_APPROX_NONE)
if len(contours) <= 0:
# print ("Waiting for something to grasp...")
rospy.logwarn_throttle(
1, "Waiting for something to grasp...")
else:
contours = sorted(contours,
key=cv2.contourArea,
reverse=True)[:20]
cnt = contours[0]
# M = cv2.moments(cnt)
# self.object_info.x[i] = int(M["m10"]/M["m00"])
# self.object_info.y[i] = int(M["m01"]/M["m00"])
# cv2.circle(frames[i],(int(M["m10"]/M["m00"]),int(M["m01"]/M["m00"])), 5, (255*one_hot[0],255*one_hot[1],255*one_hot[2]), -1)
rect = cv2.minAreaRect(cnt)
box = cv2.boxPoints(rect)
cv2.drawContours(
frames[i], [np.int0(box)], 0,
(255 * one_hot[0], 255 * one_hot[1], 255 * one_hot[2]),
2)
# Calculate angle and center of each bounding box
if len(cnt) > 5:
(x, y), (MA, mA), angle = cv2.fitEllipse(cnt)
if x >= 0 and y >= 0:
self.object_info.x[i] = int(
x) + frame.shape[1] / 3 * i
self.object_info.y[i] = int(y)
self.object_info.theta[i] = np.deg2rad(angle)
# Check to make sure des has elements and there are at least 15 keypoints
if des is not None and len(kps) > 30:
test_features = np.zeros((1, k), "float32")
words, distance = vq(whiten(des), vocabulary)
for w in words:
if w >= 0 and w < 100:
test_features[0][w] += 1
# Scale the features
test_features = std_slr.transform(test_features)
# predictions based on classifier (more than 2)
predictions[i][counter] = [
class_names[j]
for j in classifier.predict(test_features)
][0]
prediction = max(set(predictions[i]),
key=predictions[i].count)
self.object_info.names[i] = prediction
# Find the point at the top of each bounding box to put label
labelY = int(
min(box[0][1], box[1][1], box[2][1], box[3][1]))
labelX = [
int(pt[0]) for pt in box if int(pt[1]) == labelY
][0]
# Add label to partial frame
font = cv2.FONT_HERSHEY_SIMPLEX
cv2.putText(
frames[i], prediction, (labelX, labelY - 5), font, 0.5,
(255 * one_hot[0], 255 * one_hot[1], 255 * one_hot[2]),
1)
# Combine smaller frames into one
frame[0:frame.shape[0], 0:frame.shape[1] / 3] = frames[0]
frame[0:frame.shape[0],
frame.shape[1] / 3:2 * frame.shape[1] / 3] = frames[1]
frame[0:frame.shape[0],
2 * frame.shape[1] / 3:frame.shape[1]] = frames[2]
# Add a dividing line down the middle of the frame
cv2.line(frame, (frame.shape[1] / 3, 0),
(frame.shape[1] / 3, frame.shape[0]), (255, 255, 255), 1)
cv2.line(frame, (2 * frame.shape[1] / 3, 0),
(2 * frame.shape[1] / 3, frame.shape[0]), (255, 255, 255),
1)
# Resize image to fit monitor (if monitor is attached)
if needResizing:
frame = cv2.resize(frame, (1920, 1080),
interpolation=cv2.INTER_CUBIC)
counter += 1
# Display the resulting frame
cv2.imshow('Object recognition', frame)
self.object_location_pub.publish(self.object_info)
cv2.waitKey(1)
if self.is_moving == True:
# Debug terminal
# print("---- IT'S MOVING -----")
self._done = True
# Debug terminal
# print(self._done)
# Calling shutdown
rospy.signal_shutdown("ismoving")
return
#cv2.imshow ("gray", gray)
#set the threshold for contouring
ret2, thresh = cv2.threshold(gray, 127, 255, 0)
#show those thresholds bby
#cv2.imshow ("thresh", thresh)
#heres where we find the coutours
#contours, hierarchy = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
contours, hierarchy = cv2.findContours(thresh, 1, 2)
img = cv2.drawContours(frame, contours, -1, (0, 255, 0), 3)
#this will display the contrours on the video
cv2.imshow('contrours on video', frame)
cnts = sorted(contours, key=cv2.contourArea, reverse=True)
for i in range(0, len(cnts)):
sel_cnts = sorted(contours, key=cv2.contourArea, reverse=True)[i]
area = cv2.contourArea(sel_cnts)
center, axis, angle = cv2.fitEllipse(sel_cnts)
hyp = 100 # length of the orientation line
# Find out coordinates of 2nd point if given length of line and center coord
linex = int(center[0]) + int(math.sin(math.radians(angle)) * hyp)
liney = int(center[1]) - int(math.cos(math.radians(angle)) * hyp)
# Draw orienation
cv2.line(frame, (int(center[0]), int(center[1])), (linex, liney),
(0, 0, 255), 5)
cv2.circle(frame, (int(center[0]), int(center[1])), 10,
(255, 0, 0), -1)
cv2.imshow('kill me', frame)
# Press Q on keyboard to exit
# Contor Detection
# Convert to grayscale
gray = cv2.cvtColor(image,cv2.COLOR_RGB2GRAY)
# Create a binary thresholded image
retval, binary = cv2.threshold(gray, 225, 255, cv2.THRESH_BINARY_INV)
# Find contours from thresholded, binary image
retval, contours, hierarchy = cv2.findContours(binary, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
# Draw all contours on a copy of the original image
contours_image = np.copy(image)
contours_image = cv2.drawContours(contours_image, contours, -1, (0,255,0), 3)
# Fit an ellipse to a contour and extract the angle from that ellipse
(x,y), (MA,ma), angle = cv2.fitEllipse(selected_contour)
# Bounding Box
# Find the bounding rectangle of a selected contour
x,y,w,h = cv2.boundingRect(selected_contour)
# Draw the bounding rectangle as a purple box
box_image = cv2.rectangle(contours_image, (x,y), (x+w,y+h), (200,0,200),2)
# Crop using the dimensions of the bounding rectangle (x, y, w, h)
cropped_image = image[y: y + h, x: x + w]
# K-Means Clustering
# Reshape image into a 2D array of pixels and 3 color values (RGB)
pixel_vals = image.reshape((-1,3))
image_binary, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
cv2.drawContours(pupil_roi_gray, contours, -1, (0, 0, 255), 1)
area = []
for i in range(0, len(contours)):
area.append(cv2.contourArea(contours[i]))
x, y, w, h = cv2.boundingRect(contours[i])
cv2.rectangle(pupil_roi_gray, (x, y), (x + w, y + h),
(255, 255, 0), 1)
if (len(contours) > 0):
max_contour_id = np.argmax(area)
ellipse = []
key = cv2.waitKey(1)
key = key - 48
if (len(contours[max_contour_id]) > 5):
ellipse = cv2.fitEllipse(
contours[max_contour_id]) #return (center,axis,angle)
cv2.ellipse(pupil_roi_gray, ellipse, (255, 255, 255), 2)
cv2.circle(pupil_roi_gray,
(int(ellipse[0][0]), int(ellipse[0][1])), 1,
(255, 255, 255), 1)
#get calibration data
pupil_center = ellipse[0]
if (key == 1):
calibration_data.append(pupil_center)
elif (key == 2):
calibration_data.append(pupil_center)
elif (key == 3):
calibration_data.append(pupil_center)
elif (key == 4):
calibration_data.append(pupil_center)
elif (key == 5):
area = cv2.contourArea(cnt) #perimeter perimeter = cv2.arcLength(cnt, True) #contour approximation epsilon = .1 * cv2.arcLength(cnt, True) approx = cv2.approxPolyDP(cnt, epsilon, True) #convex hull hull = cv2.convexHull(cnt) #Checking convexity k = cv2.isContourConvex(cnt) k #Bounding rectangle #Straight x, y, w, h = cv2.boundingRect(cnt) #Rotated rect = cv2.minAreaRect(cnt) box = cv2.boxPoints(rect) box = np.int0(box) #min enclosing circle (x, y), radius = cv2.minEnclosingCircle(cnt) #Fitting an ellipse ellipse = cv2.fitEllipse(cnt)
cv2.drawContours(im, contours, -1, (0, 255, 0), 3)
cv2.imshow('cont', im)
cv2.waitKey()
cv2.destroyAllWindows()
im_patBGR = cv2.imread('bbox/cucumber_belt_509_bbox.jpg')
im_pat = cv2.cvtColor(im_patBGR, cv2.COLOR_BGR2GRAY)
thr, im_pattern = cv2.threshold(im_pat, 230, 255, cv2.THRESH_BINARY_INV)
cv2.imshow('binary', im_pattern)
cv2.waitKey()
im_pattern, pattern_contours, hierarchy = cv2.findContours(
im_pattern, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
cv2.drawContours(im_pat, pattern_contours, -1, (0, 255, 0), 3)
cv2.imshow('cont', im_pat)
cv2.waitKey()
#contour attribs
ellipse = cv2.fitEllipse(contours[0])
cv2.ellipse(imBGR, ellipse, (0, 255, 0), 2)
cv2.imshow('cont', imBGR)
cv2.waitKey()
#sketeize, quitar ramas y luego dilate a tope
skeletonize(im_thr)
ret = cv2.matchShapes(contours[0], pattern_contours[0], 1, 0.0)
print(ret)
cv2.destroyAllWindows()
def PoseEstimationfrmMask(self, mask, frame, frameH, frameW, arSet):
# Contours detection
contours, _ = cv2.findContours(mask, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
oldArea = 300
for cnt in contours:
area = cv2.contourArea(cnt)
approx = cv2.approxPolyDP(cnt, 0.012 * cv2.arcLength(cnt, True),
True) #to change 0.012 param IMP
x = approx.ravel()[0]
y = approx.ravel()[1]
if area > 300: #param #to change
# if len(approx) == 3:
# cv2.putText(frame, "Triangle", (x, y), font, 1, (0, 0, 0))
if len(approx) == 4:
if 0:
(cx, cy), (MA, ma), angle = cv2.fitEllipse(cnt)
ar = MA / ma
else:
ar = (np.linalg.norm(approx[0] - approx[1]) +
np.linalg.norm(approx[2] - approx[3])) / (
np.linalg.norm(approx[2] - approx[1]) +
np.linalg.norm(approx[0] - approx[3]))
if ar > 1:
ar = 1 / ar
hull = cv2.convexHull(cnt)
hull_area = cv2.contourArea(hull)
solidity = float(area) / hull_area
# print "Angle",angle
# print "solidity",solidity
# print "ar",ar
condition = ar < 1 and ar > arSet
if solidity > 0.90 and condition: #to change
self.ar = ar
# print "ar",self.ar
self.ARqueue = np.roll(self.ARqueue, 1, axis=0)
self.ARqueue[0, :] = [ar]
self.ARvar = np.var(self.ARqueue, axis=0)
self.ARmean = np.mean(self.ARqueue, axis=0)
if area > oldArea:
cv2.drawContours(frame, [approx], 0, (0, 0, 0), 5)
#cv2.circle(frame,(int(cx),int(cy)), 3, (0,0,255), -1)
cv2.putText(frame, "Rectangle", (x, y), font, 1,
(0, 0, 0))
cntMain = approx
rect = self.order_points(cntMain)
# print "rect",rect
Pose = self.PoseEstimation(rect, frameH, frameW)
if self.PoseFlag == 1:
# print "PoseFlag",self.PoseFlag
self.telloPose = np.transpose(Pose)
self.poseQueue = np.roll(self.poseQueue,
1,
axis=0)
self.poseQueue[0, :] = [
Pose[0, 0], Pose[0, 1], Pose[0, 2]
]
self.telloPoseVariance = np.var(self.poseQueue,
axis=0)
self.telloPoseMean = np.mean(self.poseQueue,
axis=0)
# print "PoseQueue",self.poseQueue
# print "PoseMean",self.telloPoseMean
# print "telloPoseVariance" , self.telloPoseVariance
else:
pass
varN = np.linalg.norm(self.telloPoseVariance)
# print "varN",varN
oldArea = area
masky = cv2.inRange(image, lowery, uppery)
imageb, contoursb, hierarchyb = cv2.findContours(maskb, cv2.RETR_LIST,
cv2.CHAIN_APPROX_NONE)
imagey, contoursy, hierarchyy = cv2.findContours(masky, cv2.RETR_LIST,
cv2.CHAIN_APPROX_SIMPLE)
sortedContoursb = sorted(contoursb, key=cv2.contourArea, reverse=True)
sortedContoursy = sorted(contoursy, key=cv2.contourArea, reverse=True)
## Create Ellipse
ellipseb, ellipsey = 0, 0
xb, yb, xy, yy, = 0, 0, 0, 0
if len(sortedContoursb) > 0:
if len(sortedContoursb[0]) > 5:
ellipseb = cv2.fitEllipse(sortedContoursb[0])
(xb, yb), (MA, ma), angle = ellipseb
cv2.ellipse(image, ellipseb, (0, 255, 255), 1)
if len(sortedContoursy) > 0:
if len(sortedContoursy[0]) > 5:
ellipsey = cv2.fitEllipse(sortedContoursy[0])
(xy, yy), (MA, ma), angle = ellipsey
cv2.ellipse(image, ellipsey, (0, 255, 255), 1)
if (xb - xy != 0):
m = abs((yy - yb) / (xb - xy))
else:
m = 100
if (xb != 0) and (xy != 0) and m < .2:
pixel = abs(int(round(xb - xy)))
if pixel == 0:
def scale(self):
# scale parameter determination
ecc = 0.7
diameter_min = 25
diameter_max = 1000
distance_max = 10
img = self.image
# resize image for processing
sc = 2000 / float(img.shape[1])
imgres = cv2.resize(img,
(int(img.shape[1] * sc), int(img.shape[0] * sc)))
# convert to grayscale image
gray = cv2.cvtColor(imgres, cv2.COLOR_BGR2GRAY)
# adaptive thresholding
th = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY, 201, 10.0)
# closing operator
kernel = np.ones((5, 5), np.uint8)
closing = cv2.morphologyEx(th, cv2.MORPH_CLOSE, kernel)
# extract contours
im2, contours, hierarchy = cv2.findContours(closing, cv2.RETR_LIST,
cv2.CHAIN_APPROX_NONE)
# filter contours by bounding box and eccentricity
Contdist = np.array([[0, 0]])
contlist = list()
bboxlist = list()
for cnt in contours:
x, y, w, h = cv2.boundingRect(cnt)
# filter contours by bounding
if (w > diameter_min and w < diameter_max and h > diameter_min
and h < diameter_max):
# compute eccentricity
(center, axes, orientation) = cv2.fitEllipse(cnt)
majoraxis_length = max(axes)
minoraxis_length = min(axes)
eccent = np.sqrt(1 - (minoraxis_length / majoraxis_length)**2)
# filter contours by eccentricity
if eccent < ecc:
ar = np.array([[int(x + (w / 2)), int(y + (h / 2))]])
Contdist = np.concatenate((Contdist, ar))
contlist.append(cnt)
bboxlist.append([x, y, w, h])
Contdist = Contdist[1:]
# compute pairwise distance
dist_matrix = scipy.spatial.distance.pdist(Contdist)
distsquare = scipy.spatial.distance.squareform(dist_matrix)
np.fill_diagonal(distsquare, np.inf)
# compute minimum distance
min_positions = np.where(distsquare == distsquare.min())
# find circles of scale symbol
x, y, w, h = cv2.boundingRect(contlist[min_positions[0][0]])
cent = [int(x + w / 2), int(y + h / 2)]
contlistend = list()
dialist = list()
for cnt, b in zip(contlist, bboxlist):
if (b[0] < cent[0] and b[1] < cent[1] and b[0] + b[2] > cent[0]
and b[1] + b[3] > cent[1]):
contlistend.append(cnt)
d = (b[2] + b[3]) / 2
dialist.append(d)
# find circle with maximum diameter
dmax = max(dialist)
cnt = contlistend[dialist.index(dmax)]
# compute scale resolution
if distance_max > dmax:
scale_factor = False
else:
d = dmax / sc
scale_factor = 25.86 * (d / 198)
if scale_factor < 10 or scale_factor > 150:
scale_factor = False
#cv2.drawContours(closing,cnt,-1,(0,255,0),cv2.cv.CV_FILLED)
#cv2.namedWindow('win1',cv2.cv.CV_NORMAL)
#cv2.imshow('win1',closing*255)
#cv2.waitKey()
#print('scale_factor: ' + str(scale_factor))
return scale_factor
def find(self, image):
"""
Finds elliptical markers in an image. Sample markers can be found in 'img/circle.jpg'
:param image: The image to find markers in
:return: Tuple: Whether any markers were found, Numpy array containing detected Marker objects
"""
self.img_size = (image.shape[0] + image.shape[1]) / 2.0
assert self.img_size > 0, "image size is <= 0"
self.image = image
self.gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
processed = self.process_image(self.gray)
_, self.contours, self.hierarchy = self.find_contours(processed)
self.markers = np.array([]) # type: list[CalibrationMarker]
found = False
if len(self.contours) > 1:
# region Area pre-calculation
areas = np.float32([])
for i in xrange(len(self.contours)):
area = cv2.contourArea(self.contours[i])
areas = np.append(areas, area)
# endregion
# region Contour filtering
for i in xrange(len(self.contours)):
contour = self.contours[i]
approx = cv2.approxPolyDP(contour,
0.01 * cv2.arcLength(contour, True),
True)
area = areas[i]
children = self.get_contour_children(i)
num_children = len(children)
children_areas = areas[children]
# num of contours must be greater than 5 for fitEllipse to work
if len(contour) > 5 and (len(approx) > 4) and \
(math.pow(self.img_size / 2.0, 2) > area > config.cmarker.CONTOUR_MIN_AREA) and \
num_children >= 2 and np.all(area > children_areas):
# Check ratio to children
ratio_correct = False
for child in children:
if areas[child] <= 0:
continue
child_area_ratio = area / areas[child]
if config.cmarker.CONTOUR_MAX_CHILD_AREA_RATIO > child_area_ratio > config.cmarker.CONTOUR_MIN_CHILD_AREA_RATIO:
ratio_correct = True
break
# If ratio to children matches model
if ratio_correct:
ellipse = cv2.fitEllipse(contour)
# Major and minor ellipse axes respectively
major, minor = ellipse[1]
aspect_ratio = float(major) / minor
if aspect_ratio < config.cmarker.CONTOUR_MAX_ASPECT_RATIO:
ellipse_center = np.array(
[ellipse[0][0], ellipse[0][1]])
circle_center, radius = cv2.minEnclosingCircle(
contour)
circle_center = np.array(
[circle_center[0], circle_center[1]])
# Distance between approx circle center and approx ellipse center
center_dist = np.linalg.norm(ellipse_center -
circle_center)
# Make sure approx ellipse is not bigger than approx circle
if center_dist < (major + minor) / config.cmarker.CONTOUR_MAX_CENTER_DIST_RATIO and \
major <= radius * config.cmarker.CONTOUR_MAJOR2RADIUS_RATIO and \
minor <= radius * config.cmarker.CONTOUR_MINOR2RADIUS_RATIO:
# Determine if contour is ellipse using difference between ellipse and actual contour
x, y, w, h = cv2.boundingRect(contour)
# Draw estimated ellipse mask
ellipse_mask = np.zeros((h, w, 1), np.uint8)
ellipse_translated = ((ellipse[0][0] - x,
ellipse[0][1] - y),
ellipse[1], ellipse[2])
cv2.ellipse(ellipse_mask, ellipse_translated,
(255, 255, 255), -1)
# Draw actual contour mask
contour_mask = np.zeros((h, w, 1), np.uint8)
contour_translated = np.array(
contour) - np.array([x, y])
cv2.drawContours(contour_mask,
[contour_translated], 0,
(255, 255, 255), -1)
# Find absolute difference between contour and ellipse mask
abs_diff = cv2.absdiff(contour_mask,
ellipse_mask)
# Count and normalize difference
shape_diff = cv2.countNonZero(
abs_diff) / float(area)
if shape_diff < config.cmarker.CONTOUR_ELLIPSE_CONTOUR_DIFF:
m = CalibrationMarker(
ellipse, area, num_children)
# region Check if there is a better marker nearby and delete worse ones
found_duplicate = False
markers_to_remove = []
for j in xrange(len(self.markers)):
m2 = self.markers[j]
if m.dist_to(
m2.center
) < config.cmarker.MAX_MARKER_DIST:
# If found a better one forget about me
if m2.area > m.area and m2.num_children > m.num_children:
found_duplicate = True
# If existing ones are worse delete them
else:
markers_to_remove.append(j)
for idx in markers_to_remove:
np.delete(self.markers, idx)
# endregion
# If this is the best marker in the vicinity use this one
if not found_duplicate:
self.markers = np.append(
self.markers, m)
# endregion
# Sort markers from top-left to bottom-right
found, self.markers = self.sort_markers(self.markers)
# region Draw found markers, debug only
contour_mat = image.copy()
prev_center = None
r = 10
colors = [(0, 0, 255), (0, 128, 255), (0, 200, 200), (0, 255, 0),
(200, 200, 0), (255, 0, 0), (255, 0, 255)]
for i in xrange(len(self.markers)):
marker = self.markers[i]
center = tuple(np.int0(marker.center))
if prev_center is not None and found:
cv2.line(contour_mat, center, prev_center, (0, 0, 0), 1)
if found:
color = colors[int(i / grid_size[1]) % len(colors)]
cv2.line(contour_mat, (center[0] - r, center[1] - r),
(center[0] + r, center[1] + r), color, 1)
cv2.line(contour_mat, (center[0] - r, center[1] + r),
(center[0] + r, center[1] - r), color, 1)
cv2.circle(contour_mat, center, r + 2, color, 1)
else:
color = (0, 0, 255)
cv2.line(contour_mat, (center[0] - r, center[1] - r),
(center[0] + r, center[1] + r), color, 1)
cv2.line(contour_mat, (center[0] - r, center[1] + r),
(center[0] + r, center[1] - r), color, 1)
cv2.circle(contour_mat, center, r + 2, color, 1)
# cv2.ellipse(contour_mat, marker.ellipse, color, -1)
"""if found:
cv2.putText(contour_mat, str(i), (center[0] - 5, center[1] - int(r*1.7)), cv2.FONT_HERSHEY_SIMPLEX, 0.5, (255, 255, 255), 1)"""
prev_center = center
# cv2.imshow('Objects Detected', contour_mat)
# endregion
if not found:
self.markers = np.array([])
if self.markers.shape[0] == 0:
found = False
return found, self.markers
def processimage1(self, imgdrone1):
#this method finds the distance and angle of the hoop and the angle of the drone relative to the hoop
#print "image recieved"
yellow = [
np.array(x, np.uint8) for x in [[25, 100, 100], [35, 255, 255]]
] #the hsv filter used to detect yellow color by cv2.inRange
#ranges: 0-180,0-255,0-255
erosion = (5, 5) #values used for erosion by cv2.erode
imgrgb = self.bridge.imgmsg_to_cv2(
imgdrone1,
"bgr8") #converts drone's raw_image to bgr8 used by opencv
imghsv = cv2.cvtColor(imgrgb,
cv2.COLOR_BGR2HSV) #converts hsv to rgb color
imgyellow = cv2.inRange(
imghsv, yellow[0],
yellow[1]) #filter the image for yellow, returns 8UC1 binary image
erosion = (5, 5)
imgyellow = cv2.erode(imgyellow, erosion, iterations=3)
dilation = (5, 5)
imgyellow = cv2.dilate(
imgyellow, dilation, iterations=5
) #erodes, then dilates the image to remove noise points
#self.pub_image2.publish(self.bridge.cv2_to_imgmsg(imgyellow, "8UC1")) #publish filtered binary image
filtered_contours = [] #creates array to store contours
contours, hierarchy = cv2.findContours(\
imgyellow,cv2.RETR_CCOMP,cv2.CHAIN_APPROX_SIMPLE) #finds image contours
contour_area = [(cv2.contourArea(c), (c))
for c in contours] #pairs contours with size data
contour_area = sorted(contour_area, reverse=True,
key=lambda x: x[0]) #sorts contours by size
imgcont = imgrgb #saves rgb image without drawn elements
if (len(contour_area) > 1):
stacked = np.vstack(
(contour_area[0][1], contour_area[1][1]
)) #combines the two largest contours to find hoop
if len(
stacked
) > 100: # and len(contour_area[0][1])>40 and len(contour_area[1][1])>40:
ellipse = cv2.fitEllipse(
stacked) #fits the ellipse to the combined contour
#ellipse data: 0=center, 1=size, 2=angle
#cv2.circle(imgcont, (int(round(ellipse[0][0])), int(round(ellipse[0][1]))) , 30, (200,100,0)) #draws circle at ellipse center
cv2.drawContours(imgcont, contours, -1, (0, 255, 0),
3) #draws all contours
cv2.rectangle(
imgcont, (int(round(ellipse[0][0] + ellipse[1][0] * .3)),
int(round(ellipse[0][1] + ellipse[1][1] * .3))),
(int(round(ellipse[0][0] - ellipse[1][0] * .3)),
int(round(ellipse[0][1] - ellipse[1][1] * .3))),
(200, 100, 0)
) #draws a rectangle at ellipse center with dimensions proportional to those of ellipse
cv2.ellipse(imgcont, ellipse, (255, 0, 0), 2) #draws ellipse
#the hoop is ~40" in diameter, reads h= 512 at x = 36 inches .5071 = atan((40/2)/36), .5 = radius of hoop in meters
hoop_angle = math.acos(ellipse[1][0] /
ellipse[1][1]) #computes and hoop angle
hoop_distance = .5 * math.cos(
.5071 * ellipse[1][1] / 512) / math.sin(
.5071 * ellipse[1][1] /
512) #computes distance to the hoop
drone_angle = .5071 * (ellipse[0][0] -
300) / 512 #computes drone angle
print hoop_angle
print hoop_distance
print drone_angle
print "--------------------"
imgdrone2 = self.bridge.cv2_to_imgmsg(
imgcont, "8UC3"
) #converts opencv's bgr8 back to the drone's raw_image for rviz use, converts both hsv and rgb to
self.pub_image.publish(imgdrone2)
return [drone_angle, hoop_distance, hoop_angle]
imgdrone2 = self.bridge.cv2_to_imgmsg(
imgcont, "8UC3"
) #converts opencv's bgr8 back to the drone's raw_image for rviz use, converts both hsv and rgb to rviz-readable form
self.pub_image.publish(imgdrone2)
return [-1, -1, -1] #tells navigator method no hoop is detected
def process_image(self, frame):
#rospy.loginfo("%s %s %s %s"%(str(self.is_positioning), str(self.is_grasping), str(self.is_done), str(self.is_failed)))
#rospy.loginfo("processing image ...")
#cv2.imshow("camera", frame)
# gray
frame_gray = cv2.cvtColor(frame, cv.CV_RGB2GRAY)
#frame_gray = cv2.blur(frame_gray, (3,3))
frame_gray = cv2.GaussianBlur(frame_gray, (9, 9), 0)
#cv2.imshow("camera_gray", frame_gray)
# adaptive filter
frame_filter = cv2.adaptiveThreshold(
frame_gray,
255.0,
cv.CV_THRESH_BINARY,
#cv.CV_ADAPTIVE_THRESH_GAUSSIAN_C,
cv.CV_ADAPTIVE_THRESH_MEAN_C,
9, # neighbourhood
9)
#cv2.imshow("camera_filter", frame_filter)
size = frame.shape
size = (size[1] - 1, size[0] - 1)
# rectangle
cv2.rectangle(
frame_filter,
(0, 0),
size,
255, # color
20, # thickness
8, # line-type ???
0) # random shit
# rectangle
cv2.rectangle(
frame_filter,
(0, 0),
(640, 180),
255, # color
cv2.cv.CV_FILLED, # thickness
8, # line-type ???
0) # random shit
cv2.bitwise_not(frame_filter, frame_filter)
kernel = np.ones((3, 3), 'uint8')
frame_dilate = cv2.dilate(frame_filter, np.array((3, 3)))
cv2.imshow("camera_dilate", frame_dilate)
# contours
contours, hierarchy = cv2.findContours(frame_dilate, cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
cross_w = size[0] / 2 + CROSS_OFF_X
cross_h = size[1] / 2 + CROSS_OFF_Y
#crosshair
cv2.line(frame, (cross_w, 0), (cross_w, size[1]), (255, 255, 0))
cv2.line(frame, (0, cross_h), (size[0], cross_h), (255, 255, 0))
largest = None
max_area = 0
smallest_x_dist = size[0]
snd_smallest_x_dist = size[0]
cen1 = None
cen2 = None
for c in contours:
if len(c) <= 4:
continue
area = cv2.contourArea(c)
if area > 100:
ellipse = cv2.fitEllipse(c)
axis = tuple(np.int32(ellipse[1]))
if (max(axis) < 300):
cv2.drawContours(frame, [c], -1, (255, 0, 0), 1)
cv2.ellipse(frame, ellipse, (0, 255, 0), 2)
center = tuple(np.int32(ellipse[0]))
cv2.circle(frame, center, 3, (0, 0, 255), 2)
xdist = abs(center[0] - cross_w)
#print ydist
#center = tuple(np.int32(ellipse[0]))
#axis = tuple(np.int32(ellipse[1]))
if xdist < smallest_x_dist:
snd_smallest_x_dist = smallest_x_dist
smallest_x_dist = xdist
cen2 = cen1
cen1 = center
elif xdist < snd_smallest_x_dist:
snd_smallest_x_dist = xdist
cen2 = center
#if max_area < area:
# max_area = area
# largest = c
print np.linalg.norm((np.array(cen2) - np.array(cen1)))
print(np.array(cen2) + np.array(cen1)) / 2.
self.angle = None
if largest is not None and len(largest) >= 5:
ellipse = cv2.fitEllipse(largest)
center = tuple(np.int32(ellipse[0]))
axis = tuple(np.int32(ellipse[1]))
self.angle = ellipse[-1] / 180.0 * pi
r = 30.0
cv2.line(
frame,
tuple(
np.int32(center) +
np.int32([r * cos(self.angle), r * sin(self.angle)])),
tuple(
np.int32(center) -
np.int32([r * cos(self.angle), r * sin(self.angle)])),
(0, 0, 255), 2)
#xdist = center[0] - cross_w
#ydist = center[1] - cross_h
#print xdist, ydist
# show camera image with annotations
cv2.imshow("camera contours", frame)
def process_image(img):
CORRECTION_NEEDED = False
# Define lower and upper bounds of skin areas in YCrCb colour space.
lower = np.array([0, 139, 60], np.uint8)
upper = np.array([255, 180, 127], np.uint8)
# convert img into 300*x large
r = 300.0 / img.shape[1]
print(r)
dim = (300, int(img.shape[0] * r))
#img = cv2.resize(img, dim, interpolation=cv2.INTER_AREA)
original = img.copy()
# Extract skin areas from the image and apply thresholding
ycrcb = cv2.cvtColor(img, cv2.COLOR_BGR2YCR_CB)
mask = cv2.inRange(ycrcb, lower, upper)
skin = cv2.bitwise_and(ycrcb, ycrcb, mask=mask)
_, black_and_white = cv2.threshold(mask, 127, 255, 0)
# Find contours from the thresholded image
_, contours, _ = cv2.findContours(black_and_white, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
# Get the maximum contour. It is usually the hand.
length = len(contours)
maxArea = -1
final_Contour = np.zeros(img.shape, np.uint8)
# print(final_Contour)
if length > 0:
for i in range(length):
temp = contours[i]
area = cv2.contourArea(temp)
if area > maxArea:
maxArea = area
ci = i
largest_contour = contours[ci]
# print(largest_contour)
# Draw it on the image, in case you need to see the ellipse.
cv2.drawContours(final_Contour, [largest_contour], 0, (0, 255, 0), 2)
# Get the angle of inclination
ellipse = _, _, angle = cv2.fitEllipse(largest_contour)
# original = cv2.bitwise_and(original, original, mask=black_and_white)
# Vertical adjustment correction
'''
This variable is used when the result of hand segmentation is upside down. Will change it to 0 or 180 to correct the actual angle.
The issue arises because the angle is returned only between 0 and 180, rather than 360.
'''
vertical_adjustment_correction = 0
if CORRECTION_NEEDED: vertical_adjustment_correction = 180
# Rotate the image to get hand upright
if angle >= 90:
black_and_white = im.rotate_bound(
black_and_white, vertical_adjustment_correction + 180 - angle)
original = im.rotate_bound(
original, vertical_adjustment_correction + 180 - angle)
final_Contour = im.rotate_bound(
original, vertical_adjustment_correction + 180 - angle)
else:
black_and_white = im.rotate_bound(
black_and_white, vertical_adjustment_correction - angle)
original = im.rotate_bound(original,
vertical_adjustment_correction - angle)
final_Contour = im.rotate_bound(final_Contour,
vertical_adjustment_correction - angle)
original = cv2.bitwise_and(original, original, mask=black_and_white)
cv2.imshow('Extracted Hand', final_Contour)
cv2.imwrite('contour.jpg', final_Contour)
#cv2.imshow('Original image', original)
# 求手掌中心
# 参考至http://answers.opencv.org/question/180668/how-to-find-the-center-of-one-palm-in-the-picture/
# 因为已经是黑白的，所以省略这一句
# cv2.threshold(black_and_white, black_and_white, 200, 255, cv2.THRESH_BINARY)
distance = cv2.distanceTransform(black_and_white, cv2.DIST_L2, 5,
cv2.CV_32F)
# Calculates the distance to the closest zero pixel for each pixel of the source image.
maxdist = 0
# rows,cols = img.shape
for i in range(distance.shape[0]):
for j in range(distance.shape[1]):
# 先扩展一下访问像素的 .at 的用法：
# cv::mat的成员函数： .at(int y， int x)
# 可以用来存取图像中对应坐标为（x，y）的元素坐标。
# 但是在使用它时要注意，在编译期必须要已知图像的数据类型.
# 这是因为cv::mat可以存放任意数据类型的元素。因此at方法的实现是用模板函数来实现的。
dist = distance[i][j]
if maxdist < dist:
x = j
y = i
maxdist = dist
# 得到手掌中心并画出最大内切圆
final_img = original.copy()
#cv2.circle(original, (x, y), maxdist, (255, 100, 255), 1, 8, 0)
half_slide = maxdist * math.cos(math.pi / 4)
(left, right, top, bottom) = ((x - half_slide), (x + half_slide),
(y - half_slide), (y + half_slide))
p1 = (int(left), int(top))
p2 = (int(right), int(bottom))
#cv2.rectangle(original, p1, p2, (77, 255, 9), 1, 1)
final_img = final_img[int(top):int(bottom), int(left):int(right)]
# cv2.imshow('palm image', original)
cv2.imwrite('cutout.jpg', original)
return final_img
"""
def getPupil(self, image, threshold=0, pupilMinimum=10, pupilMaximum=50):
"""
Given an image, return the coordinates of the pupil candidates.
"""
# Create the output variable.
bestPupil = -1
bestProps = {}
ellipses = []
centers = []
# Create variables to plot the regression data.
# TIPS: You must select two blob properties and add their values in
# the following lists. Then, call the private method
# __plotData() in the end of your implementation.
x = []
y = []
# Grayscale image.
grayscale = image.copy()
if len(grayscale.shape) == 3:
grayscale = cv2.cvtColor(grayscale, cv2.COLOR_BGR2GRAY)
# Define the minimum and maximum size of the detected blob.
pupilMinimum = int(round(math.pi * math.pow(pupilMinimum, 2)))
pupilMaximum = int(round(math.pi * math.pow(pupilMaximum, 2)))
# Preprocessing
#kernel = cv2.getStructuringElement(cv2.MORPH_RECT,(7,7))
#grayscale = cv2.morphologyEx(grayscale, cv2.MORPH_OPEN, kernel)
#kernel = cv2.getStructuringElement(cv2.MORPH_RECT,(15,15))
#grayscale = cv2.morphologyEx(grayscale, cv2.MORPH_CLOSE, kernel)
# Create a binary image.
_, thres = cv2.threshold(grayscale, threshold, 255,
cv2.THRESH_BINARY_INV)
#thres = self.__GetAutoThresholdPupil(grayscale)
#print thres
# Find blobs in the input image.
_, contours, hierarchy = cv2.findContours(thres, cv2.RETR_LIST,
cv2.CHAIN_APPROX_SIMPLE)
#<!--------------------------------------------------------------------------->
#<!-- YOUR CODE HERE -->
#<!--------------------------------------------------------------------------->
for blob in contours:
props = self.Props.calcContourProperties(blob, [
"centroid", "area", "extend", "circularity", "compactness",
"epr"
])
# Is candidate
if 500.0 < props["Area"] and props[
"Area"] < 8000.0 and 0.65 < props["Extend"] and props[
"Extend"] < 0.9:
centers.append(props["Centroid"])
if len(blob) > 4:
ellipses.append(cv2.fitEllipse(blob))
x.append(props["Area"])
y.append(props["Extend"])
else:
ellipses.append(cv2.minAreaRect(blob))
x.append(props["Area"])
y.append(props["Extend"])
compactnessRatio = props["Compactness"]
epr = props["Epr"]
print props["Circularity"]
if props[
"Circularity"] > 0.5 and compactnessRatio > 0.5 and epr > 0.5:
# Update best props
if bestPupil == -1:
bestProps = props
bestPupil = len(ellipses) - 1
else:
if props["Circularity"] > bestProps["Circularity"]:
bestProps = props
bestPupil = len(ellipses) - 1
# Return the final result.
return ellipses, centers, bestPupil
def ellipse_eval(contours):
c = np.concatenate(contours)
e = cv2.fitEllipse(c)
d = dist_pts_ellipse(e, c)
fit_variance = np.sum(d**2) / float(d.shape[0])
return fit_variance <= self.inital_ellipse_fit_threshhold
def get_pupil_from_contours(self, contours, small_gray, show_matching=5):
ratio_thres = self._params['ratio_threshold']
area_threshold = self._params['relative_area_threshold']
error_threshold = self._params['error_threshold']
min_contour = self._params['min_contour_len']
margin = self._params['margin']
speed_thres = self._params['speed_threshold']
dr_thres = self._params['dr_threshold']
err = np.inf
best_ellipse = None
best_contour = None
results, cond = defaultdict(list), defaultdict(list)
for j, cnt in enumerate(contours):
if len(contours[j]
) < min_contour: # otherwise fitEllipse won't work
continue
ellipse = cv2.fitEllipse(contours[j])
((x, y), axes, angle) = ellipse
if min(axes) == 0: # otherwise ratio won't work
continue
ratio = max(axes) / min(axes)
area = np.prod(ellipse[1]) / np.prod(small_gray.shape)
curr_err = self.goodness_of_fit(cnt, ellipse)
results['ratio'].append(ratio)
results['area'].append(area)
results['rmse'].append(curr_err)
results['x coord'].append(x / small_gray.shape[1])
results['y coord'].append(y / small_gray.shape[0])
center = np.array(
[x / small_gray.shape[1], y / small_gray.shape[0]])
r = max(axes)
dr = 0 if self._radius is None else np.abs(
r - self._radius) / self._radius
dx = 0 if self._center is None else np.sqrt(
np.sum((center - self._center)**2))
results['dx'].append(dx)
results['dr/r'].append(dr)
matching_conditions = 1 * (ratio <= ratio_thres) + 1 * (area >= area_threshold) \
+ 1 * (curr_err < error_threshold) \
+ 1 * (margin < center[0] < 1 - margin) \
+ 1 * (margin < center[1] < 1 - margin) \
+ 1 * (dx < speed_thres * self._last_detection) \
+ 1 * (dr < dr_thres * self._last_detection)
cond['ratio'].append(ratio <= ratio_thres)
cond['area'].append(area >= area_threshold)
cond['rmse'].append(curr_err < error_threshold)
cond['x coord'].append(margin < center[0] < 1 - margin)
cond['y coord'].append(margin < center[1] < 1 - margin)
cond['dx'].append(dx < speed_thres * self._last_detection)
cond['dr/r'].append(dr < dr_thres * self._last_detection)
results['conditions'] = matching_conditions
cond['conditions'].append(True)
if curr_err < err and matching_conditions == 7:
best_ellipse = ellipse
best_contour = cnt
err = curr_err
cv2.ellipse(small_gray, ellipse, (0, 0, 255), 2)
elif matching_conditions >= show_matching:
cv2.ellipse(small_gray, ellipse, (255, 0, 0), 2)
if best_ellipse is None:
df = pd.DataFrame(results)
df2 = pd.DataFrame(cond)
print('-', end="", flush=True)
if np.any(df['conditions'] >= show_matching):
idx = df['conditions'] >= show_matching
df = df[idx]
df2 = df2[idx]
df[df2] = np.nan
print("\n", df, flush=True)
self._last_detection += 1
else:
self._last_detection = 1
return best_contour, best_ellipse
def FitEllipse_RANSAC(pnts,
roi,
cfg,
max_itts=5,
max_refines=3,
max_perc_inliers=95.0):
'''
Robust ellipse fitting to segmented boundary points
Parameters
----
pnts : n x 2 array of integers
Candidate pupil-iris boundary points from edge detection
roi : 2D scalar array
Grayscale image of pupil-iris region for display only
max_itts : integer
Maximum RANSAC ellipse candidate iterations
max_refines : integer
Maximum RANSAC ellipse inlier refinements
max_perc_inliers : float
Maximum inlier percentage of total points for convergence
Returns
----
best_ellipse : tuple of tuples
Best fitted ellipse parameters ((x0, y0), (a,b), theta)
'''
# Debug flag
DEBUG = False
# Output flags
graphics = cfg.getboolean('OUTPUT', 'graphics')
# Suppress invalid values
np.seterr(invalid='ignore')
# Maximum normalized error squared for inliers
max_norm_err_sq = 2.0
# Tiny circle init
best_ellipse = ((0, 0), (1e-6, 1e-6), 0)
# Create display window and init overlay image
if graphics:
cv2.namedWindow('RANSAC', cv2.WINDOW_AUTOSIZE)
# Count pnts (n x 2)
n_pnts = pnts.shape[0]
# Break if too few points to fit ellipse (RARE)
if n_pnts < 5:
return best_ellipse
random.seed()
# Ransac iterations
for itt in range(0, max_itts):
# Select 5 points at random
sample_pnts = np.asarray(random.sample(list(pnts), 5))
# Fit ellipse to points
ellipse = cv2.fitEllipse(sample_pnts)
# Refine inliers iteratively
for refine in range(0, max_refines):
# Calculate normalized errors for all points
norm_err = EllipseNormError(pnts, ellipse)
# Identify inliers
inliers = np.nonzero(norm_err**2 < max_norm_err_sq)[0]
# Update inliers set
inlier_pnts = pnts[inliers]
# Protect ellipse fitting from too few points
if inliers.size < 5:
if DEBUG: print('Break < 5 Inliers (During Refine)')
break
# Fit ellipse to refined inlier set
ellipse = cv2.fitEllipse(inlier_pnts)
# End refinement
# Count inliers (n x 2)
n_inliers = inliers.size
perc_inliers = (n_inliers * 100.0) / n_pnts
# Update overlay image and display
if graphics:
overlay = cv2.cvtColor(roi / 2, cv2.COLOR_GRAY2RGB)
OverlayRANSACFit(overlay, pnts, inlier_pnts, ellipse)
cv2.imshow('RANSAC', overlay)
cv2.waitKey(5)
# Update best ellipse
best_ellipse = ellipse
if perc_inliers > max_perc_inliers:
if DEBUG: print('Break Max Perc Inliers')
break
return [best_ellipse, inlier_pnts]
def getGlints(self,
image,
threshold=0,
glintsMinimum=1,
glintsMaximum=10,
numOfGlints=1,
pupilCenter=(0, 0)):
"""
Given an image, return the coordinates of the glints candidates.
"""
# Correct the number of glints.
if numOfGlints < 1:
numOfGlints = 1
# Create the output variable.
bestGlints = [-1] * numOfGlints
bestGlintsProps = [{}] * numOfGlints
ellipses = []
centers = []
grayscale = image.copy()
if len(grayscale.shape) == 3:
grayscale = cv2.cvtColor(grayscale, cv2.COLOR_BGR2GRAY)
glintProps = []
_, thres = cv2.threshold(grayscale, threshold, 255,
cv2.THRESH_BINARY_INV)
#thres = self.__GetAutoThresholdGlints(grayscale)
# Find blobs in the input image.
_, contours, hierarchy = cv2.findContours(thres, cv2.RETR_LIST,
cv2.CHAIN_APPROX_SIMPLE)
pupilCenterAsNumpyArray = np.array(pupilCenter)
for blob in contours:
props = self.Props.calcContourProperties(
blob, ["centroid", "area", "extend", "circularity"])
distance = np.linalg.norm(
np.array(props["Centroid"]) - pupilCenterAsNumpyArray)
if props["Area"] < 1000.0 and props["Area"] > 15.0 and props[
"Circularity"] > 0.2 and distance < 50:
centers.append(props["Centroid"])
glintProps.append(props)
if len(blob) > 4:
ellipses.append(cv2.fitEllipse(blob))
else:
ellipses.append(cv2.minAreaRect(blob))
i = 0
if len(ellipses) <= numOfGlints:
for ell in ellipses:
bestGlints[i] = i
i += 1
else:
bestGlints = self.__GetBestGlints(glintProps,
pupilCenterAsNumpyArray,
numOfGlints)
print i
#<!--------------------------------------------------------------------------->
#<!-- -->
#<!--------------------------------------------------------------------------->
# Return the final result.
return ellipses, centers, bestGlints