def scan_image_different_threshs(self, cv_image):
'''Scan image using multiple thresholds if first try fails. Return list of data found in image.'''
scan_try = 0
qr_data = []
while True:
if scan_try == 0:
image_to_scan = cv_image # use original image
elif scan_try == 1:
cv_gray_image = cv2.cvtColor(cv_image, cv2.COLOR_BGR2GRAY)
cv_thresh_image = cv2.adaptiveThreshold(cv_gray_image, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 101, 2)
image_to_scan = cv2.cvtColor(cv_thresh_image, cv2.COLOR_GRAY2BGR)
elif scan_try == 2:
cv_gray_image = cv2.cvtColor(cv_image, cv2.COLOR_BGR2GRAY)
cv_thresh_image = cv2.adaptiveThreshold(cv_gray_image, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 39, 2)
image_to_scan = cv2.cvtColor(cv_thresh_image, cv2.COLOR_GRAY2BGR)
elif scan_try == 3:
cv_gray_image = cv2.cvtColor(cv_image, cv2.COLOR_BGR2GRAY)
_, cv_thresh_image = cv2.threshold(cv_gray_image, 150, 255, 0)
image_to_scan = cv2.cvtColor(cv_thresh_image, cv2.COLOR_GRAY2BGR)
else:
break # nothing else to try.
qr_data = self.scan_image(image_to_scan)
if len(qr_data) > 0:
break # found code data in image so don't need to keep trying
scan_try += 1
# Notify if had to use a backup thresholding and had success.
if scan_try > 0 and len(qr_data) > 0:
print 'success on scan try {0}'.format(scan_try)
return qr_data
def fneighbourdhood_area(x):
global na, thres, windowTitle, tipo
if x % 2 ==0:
na = x+1
else:
na = x
if na == 0 or na == 1:
na = 3
if tipo == 0:
thres = img
elif tipo == 1:
thres = cv2.adaptiveThreshold(img, maxValue,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY, na, cons)
elif tipo == 2:
thres = cv2.adaptiveThreshold(img, maxValue, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,na,cons)
blobImg = Image(thres)
invImg = blobImg.invert()
blobImg = blobImg.rotate90()
invImg = blobImg.invert()
blobs = invImg.findBlobs()
for blob in blobs:
#print blob.coordinates()
invImg.dl().circle(blob.coordinates(), 3, Color.RED, filled = True)
blobImg.addDrawingLayer(invImg.dl())
blobs.show(color=Color.GREEN,width=1)
cv2.imshow(windowTitle, thres)
def find_boxes(im, size):
# Does some preprocessing
gray = cv2.cvtColor(im, cv2.COLOR_BGR2GRAY)
thresh = cv2.adaptiveThreshold(gray, 255, 1, 0, 127, 0)
contours, _ = cv2.findContours(thresh.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
thresh2 = cv2.adaptiveThreshold(gray, 255, 1, 1, 127, 0)
contours2, _ = cv2.findContours(thresh2.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
# Checks if image needs to be inverted
if len(contours2) > len(contours):
thresh = thresh2
contours = contours2
boxes = []
splits = []
for cnt in contours:
x, y, w, h = cv2.boundingRect(cnt)
if w > size * 2 or h > size * 2: # Too big
continue
if w >= size and h >= size: # Perfect size
boxes.append((x, y, x + w, y + h))
elif w >= size or h >= size: # half box
# Tries to find other half
i = find_near(splits, x + w / 2, y + h / 2, size)
if i > -1: # If it finds it, connects them
other = splits.pop(i)
x1, y1, x2, y2 = join_rect((x, y, w, h), other)
boxes.append((x1, y1, x2, y2))
else: # Else, stores for later
splits.append((x, y, w, h))
# returns all the boxes and the processed image
return boxes, thresh
def onBlockSize (pos):
if (pos%2 != 0):
thres = cv2.getTrackbarPos("threshold","image")
if thres == 0:
img2 = cv2.adaptiveThreshold(img,cv2.getTrackbarPos("maxValue","image"),cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY,pos,cv2.getTrackbarPos("cte","image"))
else: img2 = cv2.adaptiveThreshold(img,cv2.getTrackbarPos("maxValue","image"),cv2.ADAPTIVE_THRESH_GAUSSIAN_C,cv2.THRESH_BINARY,pos,cv2.getTrackbarPos("cte","image"))
cv2.imshow("image",img2)
def main():
const = 2
block_size = 51
imagePath = "../data/sudoku.png"
image = cv2.imread(imagePath, 0)
cv2.imshow("Orignal Image", image)
mean_thresh = \
cv2.adaptiveThreshold(image, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, block_size, const)
gaussian_thresh = \
cv2.adaptiveThreshold(image, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, block_size, const)
images = [image, mean_thresh, gaussian_thresh]
titles = ["Orignals", "Mean", "Gaussian"]
cv2.imshow("Mean Image", mean_thresh)
cv2.imshow("Gaussian Image", gaussian_thresh)
for i in range(3):
plt.subplot(3, 1, i + 1)
plt.imshow(images[i], cmap='gray')
plt.title(titles[i])
plt.show()
cv2.waitKey(0)
cv2.destroyAllWindows()
def get(self):
r1 = cv2.getTrackbarPos('r1', self.windowname)
r2 = cv2.getTrackbarPos('r2', self.windowname)
r3 = cv2.getTrackbarPos('r3', self.windowname)
l1 = cv2.getTrackbarPos('l1', self.windowname)
l2 = cv2.getTrackbarPos('l2', self.windowname)
l3 = cv2.getTrackbarPos('l3', self.windowname)
# Remove light
h, s, v = cv2.split(self.orig_hsv)
kernel = np.ones((9*2+1, 9*2+1), np.uint8)
v_dilated = cv2.dilate(v, kernel, iterations = 1)
v_out = cv2.subtract(v_dilated, v)
#ret, v_t = cv2.threshold(v, l3, r3, cv2.THRESH_TRUNC)
# Binarization
#ret, ots = cv2.threshold(v_out, 0, 255, cv2.THRESH_BINARY + cv2.THRESH_OTSU)
#et, ots2 = cv2.threshold(v, 0, 255, cv2.THRESH_BINARY + cv2.THRESH_OTSU)
#self.hist(v_out)
#for i in xrange(l1):
# ret, mask = cv2.threshold(v_out, l2, 255, cv2.THRESH_TOZERO)
# v_out = cv2.bitwise_and(v_out, mask)
# v_out = cv2.add(v_out, (v_out/l3))
v_out = cv2.bitwise_not(v_out)
th3 = cv2.adaptiveThreshold(v, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,l1*2+1,l2)
th4 = cv2.adaptiveThreshold(v_out, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,l1*2+1,l2)
return [v_out, th3, th4]
def find_yellow_contours(self, split_image):
lab_bthreshed_board = cv2.adaptiveThreshold(split_image.lab[2], 255,
cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY,
self.options["board_blocksize"], self.options["board_C_b"])
yuv_uthreshed_board = cv2.adaptiveThreshold(split_image.yuv[2], 255,
cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY,
self.options["board_blocksize"], self.options["board_C_u"])
yuv_uthreshed_board = cv2.bitwise_not(yuv_uthreshed_board)
finalThreshed = lab_bthreshed_board & yuv_uthreshed_board
# Erode and dilate thresholded images
morph_size = self.options["board_morph_size"]
erode_element = cv2.getStructuringElement(cv2.MORPH_ELLIPSE, (morph_size * 2 + 1, morph_size * 2 + 1),
(morph_size, morph_size))
dilate_element = cv2.getStructuringElement(cv2.MORPH_ELLIPSE, (morph_size * 2 + 1, morph_size * 2 + 1),
(morph_size, morph_size))
eroded = cv2.erode(finalThreshed,erode_element, iterations = self.options["board_morph_iter"])
finalThreshed = cv2.dilate(eroded, dilate_element, iterations = self.options["board_morph_iter"])
finalThreshed = cv2.dilate(finalThreshed, dilate_element, iterations = self.options["board_morph_iter"])
finalThreshed = cv2.erode(finalThreshed, erode_element, iterations = self.options["board_morph_iter"])
self.post_if_enabled('yellow_lab_bthreshed', lab_bthreshed_board)
self.post_if_enabled('yellow_yuv_uthreshed', yuv_uthreshed_board)
self.post_if_enabled('yellow_binary_image', finalThreshed)
_, contours, hierarchy = cv2.findContours(np.copy(finalThreshed),
cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
return contours, hierarchy
def adaptative_thresholding(x):
global thres, na, cons, maxValue, tipo, img, windoTitle
if x == 0:
thres = img
maxValue = 255
na = 11
cons = 2;
cv2.createTrackbar('Neighbourhood area (odds)', windowTitle, na, maxValue, fneighbourdhood_area)
cv2.createTrackbar('Constant', windowTitle, -maxValue, maxValue, fConstant)
cv2.createTrackbar('MaxValue', windowTitle, maxValue, maxValue, fMaxValue)
elif x == 1:
thres = cv2.adaptiveThreshold(img, maxValue,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY, na, cons)
elif x == 2:
thres = cv2.adaptiveThreshold(img, maxValue, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,na,cons)
tipo = x
blobImg = Image(thres)
invImg = blobImg.invert()
blobImg = blobImg.rotate90()
invImg = blobImg.invert()
blobs = invImg.findBlobs()
for blob in blobs:
#print blob.coordinates()
invImg.dl().circle(blob.coordinates(), 3, Color.RED, filled = True)
blobImg.addDrawingLayer(invImg.dl())
blobs.show(color=Color.GREEN,width=1)
cv2.imshow(windowTitle, thres)
def Hough_transform(img, imgc):
th2 = cv2.adaptiveThreshold(img,255,cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY,11,2)
th3 = cv2.adaptiveThreshold(img,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,11,2)
kernel = np.ones((3,3),np.uint8)
edges = cv2.Canny(th2,50,150,apertureSize = 3)
maxo = 0
ie = 0
aux = []
for i in range (140, 250):
lines = cv2.HoughLines(edges,1,np.pi/180,i)
aux.extend(lines)
for l in aux:
for rho,theta in l:
a = np.cos(theta)
b = np.sin(theta)
x0 = a*rho
y0 = b*rho
x1 = int(x0 + 1000*(-b))
y1 = int(y0 + 1000*(a))
x2 = int(x0 - 1000*(-b))
y2 = int(y0 - 1000*(a))
cv2.line(imgc,(x1,y1),(x2,y2),(0,0,0),1)
cv2.imshow("Hough transform", imgc)
def testImgThreshod():
#orig = cv2.imread('./images/lock.jpg',0)
img = cv2.imread('./images/free.jpg',0) #comp.jpg eme.jpg building.jpg lock.jpg food.jpg
#img = cv2.medianBlur(img,5)
# ret,gth1 = cv2.threshold(img,5,255,cv2.THRESH_BINARY)
# ret,gth2 = cv2.threshold(img,50,255,cv2.THRESH_BINARY)
# ret,gth3 = cv2.threshold(img,100,255,cv2.THRESH_BINARY)
# ret,gth4 = cv2.threshold(img,150,255,cv2.THRESH_BINARY)
# ret,gth5 = cv2.threshold(img,200,255,cv2.THRESH_BINARY)
ret,gth1 = cv2.threshold(img,5,255,cv2.THRESH_TRUNC)
ret,gth2 = cv2.threshold(img,5,255,cv2.THRESH_BINARY)
ret,gth3 = cv2.threshold(img,100,255,cv2.THRESH_TRUNC)
ret,gth4 = cv2.threshold(img,100,255,cv2.THRESH_BINARY)
ret,gth5 = cv2.threshold(img,200,255,cv2.THRESH_TRUNC)
ret,gth6 = cv2.threshold(img,200,255,cv2.THRESH_BINARY)
th2 = cv2.adaptiveThreshold(img,255,cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY,11,2)
th3 = cv2.adaptiveThreshold(img,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,11,2)
titles = ['Modified Image' , 'Global Thresholding (v = 5, trunc)',
'Global Thresholding (v = 5)', 'Global Thresholding (v = 100, trunc)', 'Global Thresholding (v = 100)', 'Global Thresholding (v = 200, trunc)', 'Global Thresholding (v = 200)', 'ADAPTIVE_THRESH_GAUSSIAN']
images = [img, gth1, gth2, gth3, gth4, gth5, gth6, th3]
for i in xrange(8):
plt.subplot(3,3,i+1),plt.imshow(images[i],'gray')
plt.title(titles[i])
plt.xticks([]),plt.yticks([])
plt.show()
def convertData(filename, flag):
if os.path.exists(filename) == False:
raise ValueError
return None
with open(filename,'rb+') as handle:
reader = csv.reader(handle)
index = 0
data = []
labels = []
for line in reader:
index = index + 1
if index == 1:
continue
if flag == "train":
res = map(np.uint8,line[:28*28+1])
labels.append(res[0])
info_arr = np.array(res[1:]).reshape([28,28,1])
info_img = cv.adaptiveThreshold(info_arr, 255, cv.ADAPTIVE_THRESH_GAUSSIAN_C, cv.THRESH_BINARY, 11, 2)
data.append(255 - info_img.astype(np.float).reshape([28,28,1]))
#cv.imwrite("train/S%05d_%d.jpg" % (index-1,res[0]),info_arr)
if flag == "test":
info_arr = np.array( map( np.uint8, line[:28*28] ) ).reshape([28,28,1])
info_img = cv.adaptiveThreshold(info_arr, 255, cv.ADAPTIVE_THRESH_GAUSSIAN_C, cv.THRESH_BINARY, 11, 2)
data.append(255 - info_img.astype(np.float).reshape([28,28,1]))
#cv.imwrite("test/S%05d.jpg" % (index-1),info_arr)
if flag == "train":
labels_handle = open("labels.pkl","wb")
pickle.dump(np.array(labels),labels_handle)
labels_handle.close()
saveHandle = open(filename.split(".")[0] + ".pkl",'wb')
pickle.dump(np.array(data),saveHandle)
saveHandle.close()
def get_threshold(init_img):
gray = cv2.cvtColor(init_img, cv2.COLOR_BGR2GRAY)
img = cv2.medianBlur(gray, 5)
ret, th1 = cv2.threshold(img, 127, 255, cv2.THRESH_BINARY)
th2 = cv2.adaptiveThreshold(img, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, 11, 2)
th3 = cv2.adaptiveThreshold(img, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 11, 2)
def process(self, annotator, iohelper):
img = cv2.imread(iohelper.thumbnail())
image = img.copy()
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
gray_blur = cv2.GaussianBlur(gray, (15, 15), 0)
thresh = cv2.adaptiveThreshold(gray_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=3)
methods = ['cv2.TM_CCOEFF', 'cv2.TM_CCOEFF_NORMED', 'cv2.TM_CCORR',
'cv2.TM_CCORR_NORMED', 'cv2.TM_SQDIFF', 'cv2.TM_SQDIFF_NORMED']
template = cv2.imread(iohelper.template(), 0)
template_gray_blur = cv2.GaussianBlur(template, (15, 15), 0)
template_thresh = cv2.adaptiveThreshold(template_gray_blur, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV, 11, 1)
w, h = template.shape[::-1]
res = cv2.matchTemplate(closing, template_thresh, eval(methods[1]))
threshold = 0.3
loc = np.where( res >= threshold)
for pt in zip(*loc[::-1]):
annotator.add_bug(pt[0], pt[1], w, h)
cv2.rectangle(image, pt, (pt[0] + w, pt[1] + h), (0,0,255), 1)
# cv2.imshow('Image', closing)
# cv2.waitKey()
return image
def get_contours(image, total, question):
#Otsu's thresholding
#cv2.threshold(image,0,255,cv2.THRESH_BINARY+cv2.THRESH_OTSU,image)
w, h = image.shape[::-1]
block_size = w
if block_size%2==0: block_size+=1
cv2.adaptiveThreshold(image, 255, cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY_INV,block_size,doc_parameters["adaptative_threshold_size"],image)
contours, hierarchy = cv2.findContours(image.copy(),cv2.RETR_EXTERNAL,cv2.CHAIN_APPROX_SIMPLE)
contours.reverse()
if cv2.__version__=="2.4.3": #a bug in opencv 2.4.3, the fix is to add .astype("int") in the contour element
contours = [get_contour_data(c.astype('int'), image) for c in contours]
else:
contours = [get_contour_data(c, image) for c in contours]
contours = [c for c in contours if not c["empty"]]
for i in range(len(contours)): contours[i]["index"]=i
if len(contours) < total:
return False,[]
#if there are more contours than expected try merge them
if len(contours)>total:
contours = merge_contours_kmeans(contours, total, image)
if len(contours)>1:
if not same_size(contours, image):
report.errors.append(QuestionError(question,"The circles don't have the same size or are too big"))
else:
mean_rad = 0
for c in contours:
mean_rad+=c["radius"]
mean_rad=mean_rad/float(len(contours))
for c in contours:
c["radius"] = mean_rad
recalculate_intensity(c,image)
if len(contours)!= total:
report.errors.append(QuestionError(question,"The number of circles do not match"))
if not doc_parameters["squares"] and not are_circular(contours):
report.errors.append(QuestionError(question,"All the circles don't have the correct shape"))
if len(contours)>1:
if not same_distance(contours,doc_parameters["distance_threshold"]):
report.errors.append(QuestionError(question,"All the circles are not within the same distance"))
if not are_aligned(contours, doc_parameters["circle_aligment_percent"]):
report.errors.append(QuestionError(question,"All the boxes are not aligned"))
if doc_parameters["debug"]:
debug_contour_detection(contours, image)
if doc_parameters["debug"]:
errors = [e for e in report.errors if e.question == question]
if len(errors)==0: print "-----OK-----"
else:
for e in errors:
print e.message
print "------------"
cv2.waitKey()
def threshold(img, method = 'binary', thres = 127., max_value = 255.):
if method == 'binary':
ret,th = cv.threshold(img, thres, max_value, cv.THRESH_BINARY)
elif method == 'adaptative_mean':
th = cv.adaptiveThreshold(img, max_value, cv.ADAPTIVE_THRESH_MEAN_C, cv.THRESH_BINARY, 11, 2)
else:
th = cv.adaptiveThreshold(img, max_value,cv.ADAPTIVE_THRESH_GAUSSIAN_C, cv.THRESH_BINARY,11,2)
return th
def binarize_cv(image_gray):
BLOCK_SIZE = 29
C = 20
image_gray = cv2.dilate(image_gray, cv2.getStructuringElement(cv2.MORPH_RECT, (3, 3)))
image_bin_mean = cv2.adaptiveThreshold(image_gray, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, BLOCK_SIZE, C)
image_bin_gaussian = cv2.adaptiveThreshold(image_gray, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, BLOCK_SIZE, C)
cv2.imwrite('bin_mean.jpg', image_bin_mean)
cv2.imwrite('bin_gaussian.jpg', image_bin_gaussian)
def get_text_roi(frame, show_window=True):
kernel_sharpen = np.array([[-1,-1,-1],[-1,9,-1],[-1,-1,-1]])
kernel_sharpen_3 = np.array([[-1,-1,-1,-1,-1],
[-1,2,2,2,-1],
[-1,2,8,2,-1],
[-1,2,2,2,-1],
[-1,-1,-1,-1,-1]]) / 8.0
chars = []
bound = 5
kernel = np.ones((2,2),np.uint8)
frame_gray = cv2.cvtColor(frame,cv2.COLOR_BGR2GRAY)
frame_gray = cv2.filter2D(frame_gray.copy(),-1,kernel_sharpen_3)
# frame_gray = cv2.GaussianBlur(frame_gray, (5,5),0) # Gaussian blur to remove noise
# Adaptive threshold to find numbers on paper
thresh = cv2.adaptiveThreshold(frame_gray,255,
cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV,255,7)
thresh = cv2.morphologyEx(thresh,cv2.MORPH_OPEN,kernel,iterations=2)
# cv2.imshow('thresh',thresh)
contours,hierarchy = cv2.findContours(thresh,cv2.RETR_TREE,
cv2.CHAIN_APPROX_NONE)
cv2.drawContours(frame,contours,-1,(255,0,0),2)
# Build the list of number contours and number locations
if len(contours) < 35:
for ind,contour in enumerate(contours):
[x,y,w,h] = cv2.boundingRect(contour)
x_bound = w * .1;
y_bound = h * .1;
if bound < x < (frame_gray.shape[1] - bound) and bound < y < (frame_gray.shape[0] - bound) and (x+w) <= (frame_gray.shape[1] - bound) and (y+h) <= (frame_gray.shape[0] - bound):
roi = frame_gray[y-bound:y+h+bound,x-bound:x+w+bound]
if len(roi) > 0: # Gets rid of weird zero-size contours
new_roi = cv2.adaptiveThreshold(roi,255,
cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV,35,7)
new_roi = cv2.morphologyEx(new_roi,cv2.MORPH_OPEN,kernel,iterations=2) # Embiggen numbers
new_roi = cv2.resize(new_roi, (20,20), interpolation=cv2.INTER_AREA) # standardize contours
deskewed = deskew(new_roi)
# Record contour and contour location, and filter out internal contours
if hierarchy[0][ind][3] == -1:
cont = Character(deskewed,(x,y,w,h), hog(deskewed))
chars.append(cont)
if show_window:
# Build an image to show all number contours
num_len = len(chars)
# print '# of contours: ', num_len
if num_len < 35 and num_len > 0:
new_img = np.ones((20,20*num_len),np.uint8)
y = 0
for x in chars:
new_img[:,y:y+20] = x.img
y += 20
cv2.imshow('image3',new_img)
return chars
def onThreshold (pos):
size = cv2.getTrackbarPos("blockSize","image")
if size%2 == 0:
size = size+1
if pos == 0:
img2 = cv2.adaptiveThreshold(img,cv2.getTrackbarPos("maxValue","image"),cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY,size,cv2.getTrackbarPos("cte","image"))
else: img2 = cv2.adaptiveThreshold(img,cv2.getTrackbarPos("maxValue","image"),cv2.ADAPTIVE_THRESH_GAUSSIAN_C,cv2.THRESH_BINARY,size,cv2.getTrackbarPos("cte","image"))
cv2.imshow("image",img2)
def findOpening(self, image, slowmode=False, MAX_SIZE=74, MIN_SIZE=63, startp1=119, startp2=142, startp3=2.7, imgshow=0):
result = []
detect = 0
if slowmode == False:
image = cv2.resize(image, (1280, 960))
output = image.copy()
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
thresh = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 11, 2)
while detect == 0: # decrease sensitivity until at least one circle is found
circles = cv2.HoughCircles(thresh,cv2.cv.CV_HOUGH_GRADIENT,startp3,50, param1=startp1,param2=startp2,minRadius=MIN_SIZE,maxRadius=MAX_SIZE)
## change param 1 and 2 for more-less circles
if circles is not None:
# convert the (x, y) coordinates and radius of the circles to integers
circles = np.round(circles[0, :]).astype("int")
# loop over the (x, y) coordinates and radius of the circles
for i in range(0,len(circles)):
# draw the circle in the output image, then draw a rectangle
# corresponding to the center of the circle
cv2.circle(output, (circles[i,0], circles[i,1]), circles[i,2], (0, 255, 0), 4)
cv2.rectangle(output, (circles[i,0] - 5, circles[i,1] - 5), (circles[i,0] + 5, circles[i,1] + 5), (0, 128, 255), -1)
if len(circles) == 1:
detect = 1
elif startp2 > 100 and len(circles) > 1: #probably not starting to find only one circle
startp2 = startp2 - 3
elif startp2 <= 100 or len(circles) > 1:
detect = 1 # to get out if too many circles get found repeatedly -- unlikely to result in wrong angle as it needs validation
else:
startp2 = startp2 - 3 # get less sensitive if no circles were found
if imgshow == 1:
cv2.imshow("thresh", thresh)
cv2.imshow("output", output)
cv2.waitKey(0)
elif slowmode == True: # Improves findOpening on the off-chance that something wrong in the image processing
oldcircles = np.zeros((1,3), dtype=np.int)
detect = 0
while detect == 0: # decrease sensitivity until at least one circle is found
image3 = cv2.resize(image, (1280, 960))
output = image3.copy()
gray = cv2.cvtColor(image3, cv2.COLOR_BGR2GRAY)
thresh = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 11, 2)
circles = cv2.HoughCircles(thresh,cv2.cv.CV_HOUGH_GRADIENT,startp3,50, param1=startp1,param2=startp2,minRadius=MIN_SIZE,maxRadius=MAX_SIZE)
if circles is not None:
circles = np.round(circles[0, :]).astype("int")
detect = 1
# show the output image
for i in range(0,len(circles)):
# draw the circle in the output image, then draw a rectangle
# corresponding to the center of the circle
if imgshow == 1:
cv2.circle(output, (circles[i,0], circles[i,1]), circles[i,2], (0, 255, 0), 4)
cv2.rectangle(output, (circles[i,0] - 5, circles[i,1] - 5), (circles[i,0] + 5, circles[i,1] + 5), (0, 128, 255), -1)
cv2.imshow("thresh", thresh)
cv2.imshow("output", output)
cv2.waitKey(0)
else:
startp2 = startp2 - 3 # get less sensitive if no circles were found
return circles
def threshold_image(im):
# There are many options here.
ret,th1 = cv2.threshold(im,2,255,cv2.THRESH_BINARY)
th2 = cv2.adaptiveThreshold(im,255,cv2.ADAPTIVE_THRESH_MEAN_C,\
cv2.THRESH_BINARY,11,2)
th3 = cv2.adaptiveThreshold(im,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C,\
cv2.THRESH_BINARY,5,2)
#ret,thresh = cv2.threshold(im,127,255,0)
return th1
def fMaxValue(x):
global maxValue, windowTitle, thres, img, na, cons
maxValue = x
if tipo == 0:
thres = img
elif tipo == 1:
thres = cv2.adaptiveThreshold(img, maxValue,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY, na, cons)
elif tipo == 2:
thres = cv2.adaptiveThreshold(img, maxValue, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,na,cons)
cv2.imshow(windowTitle, thres)
def fMaxValue(x):
global maxValueAdaptative, windowTitle, thresAdaptative, img, naAdaptative, consAdaptative, filtro
maxValueAdaptative = x
if tipoAdaptative == 0:
thresAdaptative = img
elif tipoAdaptative == 1:
thresAdaptative = cv2.adaptiveThreshold(filtro, maxValueAdaptative,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY, naAdaptative, consAdaptative)
elif tipoAdaptative == 2:
thresAdaptative = cv2.adaptiveThreshold(filtro, maxValueAdaptative, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,naAdaptative,consAdaptative)
cv2.imshow(windowTitle, thresAdaptative)
def fConstant(x):
global cons, thres, windowTitle, tipo, maxValue, na, img
# const positive to white, otherwise, to black
cons = x
if tipo == 0:
thres = img
elif tipo == 1:
thres = cv2.adaptiveThreshold(img, maxValue,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY, na, cons)
elif tipo == 2:
thres = cv2.adaptiveThreshold(img, maxValue, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,na,cons)
cv2.imshow(windowTitle, thres)
def Split_Blur_Thresh(frame): b,g,r = cv2.split(frame) b = cv2.medianBlur(b,7) g = cv2.medianBlur(g,7) r = cv2.medianBlur(r,7) b = cv2.adaptiveThreshold(b,255,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY,11,2) g = cv2.adaptiveThreshold(g,255,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY,11,2) r = cv2.adaptiveThreshold(r,255,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY,11,2) return cv2.merge((b,g,r))
def fConstant(x):
global consAdaptative, thresAdaptative, windowTitle, tipoAdaptative, maxValueAdaptative, naAdaptative, img, filtro
# consAdaptativet positive to white, otherwise, to black
consAdaptative = x
if tipoAdaptative == 0:
thresAdaptative = img
elif tipoAdaptative == 1:
thresAdaptative = cv2.adaptiveThreshold(filtro, maxValueAdaptative,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY, naAdaptative, consAdaptative)
elif tipoAdaptative == 2:
thresAdaptative = cv2.adaptiveThreshold(filtro, maxValueAdaptative, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY,naAdaptative,consAdaptative)
cv2.imshow(windowTitle, thresAdaptative)
def getrack(im):
##############TEMPORARY
#globalim = bridge.imgmsg_to_cv2(data, "bgr8")
#cv2.imshow("R", im)
#cv2.waitKey(0)
################
hsv = cv2.cvtColor(im, cv2.COLOR_BGR2HSV)
gray = cv2.cvtColor(im, cv2.COLOR_BGR2GRAY)
lower_blue = np.array([0/2,(0)*2.55,(0)*2.55])
upper_blue = np.array([(360)/2,(16)*2.55,(15)*2.55])
mask = cv2.inRange(hsv, lower_blue, upper_blue)
thresh = cv2.adaptiveThreshold(gray,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C,cv2.THRESH_BINARY,11,2)
kernel = np.ones((2,2),np.uint8)
morph2 = cv2.morphologyEx(thresh, cv2.MORPH_CLOSE, kernel,iterations = 2)
# kernel = np.ones((1,2),np.uint8)
# morph = cv2.morphologyEx(morph2, cv2.MORPH_OPEN, kernel,iterations = 1)
# kernel = np.ones((2,2),np.uint8)
# morph2 = cv2.morphologyEx(thresh, cv2.MORPH_CLOSE, kernel,iterations = 2)
# kernel = np.ones((2,2),np.uint8)
# morph = cv2.morphologyEx(mask, cv2.MORPH_OPEN, kernel,iterations = 1)
# cropim = im[140:380,100:550].copy()
imw = rotateImage(morph2,3)
print imw.shape
imw= imw[219:270,34:546].copy()
timw = cv2.adaptiveThreshold(imw,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C,cv2.THRESH_BINARY,11,2)
print imw.shape
# cv2.imshow("Result", imw)
# cv2.waitKey(0)
#print imw.shape
rack_array = []
classified = []
start = time.time()
for cut in range(0,8):
i = imw[:,cut*63:(1+cut)*63].copy()
# cv2.imshow("cut",i)
# cv2.waitKey(0)
#print i
backtorgb = cv2.cvtColor(i,cv2.COLOR_GRAY2RGB)
rack_array.append(backtorgb)
scipy.misc.imsave("9.jpg",backtorgb)
#classified.append(dl_classify.classify([backtorgb]))
#classified.append(dl_classify([None]))
elap = time.time() - start
print elap
def find_blur(img):
# make img grey
grey_img = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
# try_1 = cv2.Sobel(grey_img, cv2.CV_8U, 0, 1, ksize=5)
# se_1=cv2.getStructuringElement(cv2.MORPH_RECT,(23,5))
# # try_1 = cv2.adaptiveThreshold(try_1, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 4241, -6)
# try_2=cv2.morphologyEx(try_1, cv2.MORPH_CLOSE, se_1)
# try_2 = cv2.adaptiveThreshold(try_2, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 2241, -6)
# minus_1 = minus_background_white(grey_img, try_2)
# # minus_1_morf=cv2.morphologyEx(minus_1, cv2.MORPH_CLOSE, se_1)
# # minus_1_morf_my = minus_1.copy()
# try_3 = cv2.Sobel(grey_img, cv2.CV_8U, 1, 0, ksize=5)
# try_4=cv2.morphologyEx(try_3, cv2.MORPH_CLOSE, se_1)
# try_4 = cv2.adaptiveThreshold(try_4, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 2241, -6)
# minus_2 = minus_background_white(minus_1, try_4)
# minus_2_my = minus_2.copy()
# other
# delete sky and light objects
blur_1=cv2.GaussianBlur(grey_img,(5,5),22)
adaptive_1 = cv2.adaptiveThreshold(blur_1, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 4241, -21)
se_1=cv2.getStructuringElement(cv2.MORPH_RECT,(23,5))
closing_1=cv2.morphologyEx(adaptive_1, cv2.MORPH_CLOSE, se_1)
minus_1 = minus_background_white(grey_img, closing_1)
# delete black background from grey img
adaptive_2 = cv2.adaptiveThreshold(blur_1, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 1111, 22)
minus_2 = minus_background_black(minus_1, adaptive_2)
# minus_2_my = minus_2.copy()
# prepera new img for detection
adaptive_search = cv2.adaptiveThreshold(minus_2, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 11, -5 ) # 5
my_addaptive = adaptive_search.copy()
# detect counturs
image, contours, hierarchy = cv2.findContours(adaptive_search, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)
pass_contours = []
rejected_conturs = []
for contour in contours:
box, is_blury = detect_blur(contour, grey_img)
if is_blury:
pass_contours.append(box)
else:
rejected_conturs.append(box)
return pass_contours, rejected_conturs , \
{
# '1': closing_1,
# '3': adaptive_2,
# # 'try_1': try_1,
# '2': minus_1,
# # 'try_2': try_2,
# # 'try_3': try_3,
# # 'try_4': try_4,
# '4': minus_2_my,
# # 'try_5': try_5_my,
# '5': my_addaptive,
}
def __read(self):
self.img = cv2.medianBlur(self.img, 25)
ret, th11 = cv2.threshold(self.img, 127, 255, cv2.THRESH_BINARY_INV | cv2.THRESH_OTSU)
ret, th121 = cv2.threshold(self.img, 127, 255, cv2.THRESH_TRUNC | cv2.THRESH_OTSU) #
ret, th122 = cv2.threshold(self.img, 150, 255, cv2.THRESH_TRUNC) #
ret, th131 = cv2.threshold(self.img, 127, 255, cv2.THRESH_TOZERO_INV | cv2.THRESH_OTSU)
ret, th132 = cv2.threshold(self.img, 90, 100, cv2.THRESH_TOZERO_INV)
ret, th14 = cv2.threshold(self.img, 127, 255, cv2.THRESH_OTSU)
# adaptive: border detection issue
th2 = cv2.adaptiveThreshold(self.img, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 551, 10)
th3 = cv2.adaptiveThreshold(self.img, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, 151, 10)
return th132
def skew_correct(self, plate_detail, chars=None):
(xmin, ymin, xmax, ymax) = plate_detail["size"]
if True:
# rotate our roiblobs
plateregion = self.image[ymin - self.config["h_max"]:ymax + self.config["h_max"], xmin - 2*self.config["w_max"]:xmax + 2*self.config["w_max"]].copy()
(h, w) = plateregion.shape[:2]
(cX, cY) = (w / 2, h / 2)
degrees = math.atan(plate_detail["average_angle"]) * 180 / math.pi
#print degrees
#rotate_deg = - atan(((*glob_charlys_lys_it).m1+(*glob_charlys_lys_it).m2)/2.0) * 180.0 / 3.14159265;
#degrees = 0 # som om die gemiddelde M te kry en dan skakel ons dit om na degree
M = cv2.getRotationMatrix2D((cX, cY), degrees, 1.0)
rotated = cv2.warpAffine(plateregion, M, (w, h))
#cv2.imshow("Rotated by xx Degrees", rotated)
#cv2.waitKey(0)
plate_detail["warped"] = rotated
warped2 = cv2.adaptiveThreshold(rotated, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY_INV, self.config["thesh_window"], self.config["thesh_offset"])
plate_detail["warped2"] = warped2
#TODO: Rotate eerder as correct
else:
plate_detail["plate"] = ""
plateregion = self.image[ymin - self.config["h_max"]:ymax + self.config["h_max"], xmin - 2*self.config["w_max"]:xmax + 2*self.config["w_max"]].copy()
if self.debug:
cv2.rectangle(self.roiblobs, (xmin - 2*self.config["w_max"], ymin - self.config["h_max"]), (xmax + 2*self.config["w_max"], ymax + self.config["h_max"]), (255, 0, 0), 1)
#gray = plateregion#cv2.cvtColor(plateregion, cv2.COLOR_BGR2GRAY)
gray = cv2.GaussianBlur(plateregion, (5, 5), 0)
edged = cv2.Canny(gray, 25, 250)
#edged = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, 25, thesh_offset)
(cnts, _) = cv2.findContours(edged.copy(), cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
cnts = sorted(cnts, key = cv2.contourArea, reverse = True)[:10]
screenCnt = None
plate_detail["edged"] = edged
# find contours, stolen from pyimagesearch
for c in cnts:
# approximate the contour
peri = cv2.arcLength(c, True)
approx = cv2.approxPolyDP(c, 0.02 * peri, True)
cv2.drawContours(plateregion, [approx], -1, (0, 0, 0), 1)
if len(approx) == 4:
screenCnt = approx
break
plate_detail["screenCnt"] = screenCnt
if plate_detail["screenCnt"] is not None:
warped = four_point_transform(plateregion, screenCnt.reshape(4, 2) * 1)
#cv2.imshow("warped2", warped)
#cv2.waitKey(0)
warped2 = cv2.adaptiveThreshold(warped, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY_INV, self.config["thesh_window"], self.config["thesh_offset"])
plate_detail["warped"] = warped
plate_detail["warped2"] = warped2
return plate_detail
def process(controller):
map_initialized = False
num_images = 0
num_samples = 0
while True:
frame = controller.frame()
images = frame.images
if images[0].is_valid and images[1].is_valid:
if not map_initialized:
left_x_map, left_y_map = initDistortionMap(frame.images[0])
right_x_map, right_y_map = initDistortionMap(frame.images[1])
map_initialized = True
undistorted_left = interpolate(get_image_as_array(images[0]), left_x_map, left_y_map)
undistorted_right = interpolate(get_image_as_array(images[1]), left_x_map, left_y_map)
left_bw = cv2.adaptiveThreshold(undistorted_left, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, 13, 3)
right_bw = cv2.adaptiveThreshold(undistorted_right, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, 13, 3)
corners_left = cv2.findChessboardCorners(left_bw, board_size, flags=cv2.CALIB_CB_FILTER_QUADS)
corners_right = cv2.findChessboardCorners(right_bw, board_size, flags=cv2.CALIB_CB_FILTER_QUADS)
if corners_left[0] and corners_right[0]:
cv2.cornerSubPix(left_bw, corners_left[1], (3, 3), (-1, -1), stereocalib_criteria)
cv2.cornerSubPix(right_bw, corners_right[1], (3, 3), (-1, -1), stereocalib_criteria)
cv2.drawChessboardCorners(undistorted_left, board_size, corners_left[1], corners_left[0])
cv2.drawChessboardCorners(undistorted_right, board_size, corners_right[1], corners_right[0])
image_points1.append(corners_left[1])
image_points2.append(corners_right[1])
object_points.append(obj)
num_samples += 1
print(num_samples)
if num_samples > num_boards:
break
cv2.imshow('left', undistorted_left)
cv2.imshow('right', undistorted_right)
cv2.imshow('left_bw', left_bw)
cv2.imshow('right_bw', right_bw)
if cv2.waitKey(1) & 0xFF == ord('q'):
cv2.imwrite(f'left{num_images}.jpg', left_bw)
cv2.imwrite(f'right{num_images}.jpg', right_bw)
num_images += 1
break
retval,cameraMatrix1, distCoeffs1, cameraMatrix2, distCoeffs2, R, T, E, F = cv2.stereoCalibrate(
object_points, image_points1, image_points2, C1, D1, C2, D2, imageSize=(640, 240), flags=stereocalib_flags, criteria=stereocalib_criteria
)
print("params")
print(retval,cameraMatrix1, distCoeffs1, cameraMatrix2, distCoeffs2, R, T, E, F)
print("reprojection matrix")
a = cv2.stereoRectify(C1, D1, C2, D2, (640, 240), R, T)
print(a[-3])
def main(argv):
# [load_image]
# Check number of arguments
if len(argv) < 1:
print('Not enough parameters')
print('Usage:\nmorph_lines_detection.py < path_to_image >')
return -1
# Load the image
src = cv2.imread(argv[0], cv2.IMREAD_COLOR)
# Check if image is loaded fine
if src is None:
print('Error opening image: ' + argv[0])
return -1
# Show source image
cv2.imshow("src", src)
# [load_image]
# [gray]
# Transform source image to gray if it is not already
if len(src.shape) != 2:
gray = cv2.cvtColor(src, cv2.COLOR_BGR2GRAY)
else:
gray = src
# Show gray image
show_wait_destroy("gray", gray)
# [gray]
# [bin]
# Apply adaptiveThreshold at the bitwise_not of gray, notice the ~ symbol
gray = cv2.bitwise_not(gray)
bw = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_MEAN_C, \
cv2.THRESH_BINARY, 15, -2)
# Show binary image
show_wait_destroy("binary", bw)
# [bin]
# [init]
# Create the images that will use to extract the horizontal and vertical lines
horizontal = np.copy(bw)
vertical = np.copy(bw)
# [init]
# [horiz]
# Specify size on horizontal axis
cols = horizontal.shape[1]
horizontal_size = cols / 30
# Create structure element for extracting horizontal lines through morphology operations
horizontalStructure = cv2.getStructuringElement(cv2.MORPH_RECT,
(horizontal_size, 1))
# Apply morphology operations
horizontal = cv2.erode(horizontal, horizontalStructure)
horizontal = cv2.dilate(horizontal, horizontalStructure)
# Show extracted horizontal lines
show_wait_destroy("horizontal", horizontal)
# [horiz]
# [vert]
# Specify size on vertical axis
rows = vertical.shape[0]
verticalsize = rows / 30
# Create structure element for extracting vertical lines through morphology operations
verticalStructure = cv2.getStructuringElement(cv2.MORPH_RECT,
(1, verticalsize))
# Apply morphology operations
vertical = cv2.erode(vertical, verticalStructure)
vertical = cv2.dilate(vertical, verticalStructure)
# Show extracted vertical lines
show_wait_destroy("vertical", vertical)
# [vert]
# [smooth]
# Inverse vertical image
vertical = cv2.bitwise_not(vertical)
show_wait_destroy("vertical_bit", vertical)
'''
Extract edges and smooth image according to the logic
1. extract edges
2. dilate(edges)
3. src.copyTo(smooth)
4. blur smooth img
5. smooth.copyTo(src, edges)
'''
# Step 1
edges = cv2.adaptiveThreshold(vertical, 255, cv2.ADAPTIVE_THRESH_MEAN_C, \
cv2.THRESH_BINARY, 3, -2)
show_wait_destroy("edges", edges)
# Step 2
kernel = np.ones((2, 2), np.uint8)
edges = cv2.dilate(edges, kernel)
show_wait_destroy("dilate", edges)
# Step 3
smooth = np.copy(vertical)
# Step 4
smooth = cv2.blur(smooth, (2, 2))
# Step 5
(rows, cols) = np.where(edges != 0)
vertical[rows, cols] = smooth[rows, cols]
# Show final result
show_wait_destroy("smooth - final", vertical)
# [smooth]
return 0
def reg_line(self, img, show=False):
allBinary = cv2.resize(img.copy(),
(self.img_size[1], self.img_size[0]))
# if show==True:
# cv2.imshow("allBinary",allBinary)
# r_channel=resized[:,:,2]
# binary=np.zeros_like(r_channel)
# binary[(r_channel>200)]=1
# #if show==True:("r_channel",binary)
# hls=cv2.cvtColor(resized,cv2.COLOR_BGR2HLS)
# s_channel = resized[:, :, 2]
# binary2 = np.zeros_like(s_channel)
# binary2[(r_channel > 160)] = 1
# allBinary= np.zeros_like(binary)
# allBinary[((binary==1)|(binary2==1))]=255
if show == True:
cv2.imshow("binary", allBinary)
allBinary_visual = allBinary.copy()
if show == True:
cv2.polylines(allBinary_visual, [self.src_draw], True, 255)
cv2.imshow("polygon", allBinary_visual)
# M = cv2.getPerspectiveTransform(self.src, self.dst)
warped = self.wrap(allBinary)
# warped =
# warped = cv2.adaptiveThreshold(cv2.cvtColor(warped, cv2.COLOR_BGR2GRAY),255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C,\
# cv2.THRESH_BINARY_INV,5,2)
warped = cv2.cvtColor(warped, cv2.COLOR_BGR2GRAY)
# _, warped = cv2.threshold(warped, 0, 255, cv2.THRESH_BINARY_INV+cv2.THRESH_OTSU)
warped[(warped < 100)] = 100
img_blur = cv2.medianBlur(warped, 5)
if show == True:
cv2.imshow("warpedq", img_blur)
# cv2.imshow("warped1",warped)
# warped = cv2.adaptiveThreshold(warped,255,cv2.ADAPTIVE_THRESH_MEAN_C,\
# cv2.THRESH_BINARY_INV,5,2)
warped = cv2.adaptiveThreshold(img_blur, 255,
cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY_INV, 5, 2)
# element = cv2.getStructuringElement(cv2.MORPH_RECT, (1, 1))
# kernel = np.ones((10,10),np.uint8)
warped = cv2.erode(warped, np.ones((1, 1), np.uint8))
# warped =
# warped = cv2.dilate(warped,np.ones((1,1),np.uint8),iterations = 1)
# warped = self.thresh(warped)
# warped = cv2.morphologyEx(warped, cv2.MORPH_OPEN, np.ones((3,3),np.uint8))
warped = cv2.medianBlur(warped, 3)
if show == True:
cv2.imshow("warped", warped)
histogram = np.sum(warped[warped.shape[0] // 2:, :], axis=0)
midpoint = histogram.shape[0] // 2
IndWhitestColumnL = np.argmax(histogram[:midpoint])
IndWhitestColumnR = np.argmax(histogram[midpoint:]) + midpoint
warped_visual = warped.copy()
if show == True:
cv2.line(warped_visual, (IndWhitestColumnL, 0),
(IndWhitestColumnL, warped_visual.shape[0]), 110, 2)
cv2.line(warped_visual, (IndWhitestColumnR, 0),
(IndWhitestColumnR, warped_visual.shape[0]), 110, 2)
cv2.imshow("WitestColumn", warped_visual)
nwindows = 8
window_height = np.int(warped.shape[0] / nwindows)
window_half_width = 60
XCenterLeftWindow = IndWhitestColumnL
XCenterRightWindow = IndWhitestColumnR
left_lane_inds = np.array([], dtype=np.int16)
right_lane_inds = np.array([], dtype=np.int16)
out_img = np.dstack((warped, warped, warped))
nonzero = warped.nonzero()
WhitePixelIndY = np.array(nonzero[0])
WhitePixelIndX = np.array(nonzero[1])
for window in range(nwindows):
win_y1 = warped.shape[0] - (window + 1) * window_height
win_y2 = warped.shape[0] - (window) * window_height
left_win_x1 = XCenterLeftWindow - window_half_width
left_win_x2 = XCenterLeftWindow + window_half_width
right_win_x1 = XCenterRightWindow - window_half_width
right_win_x2 = XCenterRightWindow + window_half_width
if show == True:
cv2.rectangle(out_img, (left_win_x1, win_y1),
(left_win_x2, win_y2), (50 + window * 21, 0, 0),
2)
cv2.rectangle(out_img, (right_win_x1, win_y1),
(right_win_x2, win_y2), (0, 0, 50 + window * 21),
2)
cv2.imshow("windows", out_img)
good_left_inds = ((WhitePixelIndY >= win_y1) &
(WhitePixelIndY <= win_y2) &
(WhitePixelIndX >= left_win_x1) &
(WhitePixelIndX <= left_win_x2)).nonzero()[0]
good_right_inds = ((WhitePixelIndY >= win_y1) &
(WhitePixelIndY <= win_y2) &
(WhitePixelIndX >= right_win_x1) &
(WhitePixelIndX <= right_win_x2)).nonzero()[0]
left_lane_inds = np.concatenate((left_lane_inds, good_left_inds))
right_lane_inds = np.concatenate(
(right_lane_inds, good_right_inds))
if len(good_left_inds) > 50:
XCenterLeftWindow = np.int(
np.mean(WhitePixelIndX[good_left_inds]))
if len(good_right_inds) > 50:
XCenterRightWindow = np.int(
np.mean(WhitePixelIndX[good_right_inds]))
out_img[WhitePixelIndY[left_lane_inds],
WhitePixelIndX[left_lane_inds]] = [255, 0, 0]
out_img[WhitePixelIndY[right_lane_inds],
WhitePixelIndX[right_lane_inds]] = [0, 0, 255]
if show == True:
cv2.imshow("Lane", out_img)
leftx = WhitePixelIndX[left_lane_inds]
lefty = WhitePixelIndY[left_lane_inds]
rightx = WhitePixelIndX[right_lane_inds]
righty = WhitePixelIndY[right_lane_inds]
center_fit = []
if (len(lefty) > 10) and (len(leftx) > 10) and (len(righty) > 10) and (
len(rightx) > 10):
left_fit = np.polyfit(lefty, leftx, 2)
right_fit = np.polyfit(righty, rightx, 2)
center_fit = ((left_fit + right_fit) / 2)
self.points = []
for ver_ind in range(out_img.shape[0]):
gor_ind = ((center_fit[0]) * (ver_ind**2) +
center_fit[1] * ver_ind + center_fit[2])
# cv2.circle(out_img,(int(gor_ind),int(ver_ind)),2,(255,0,255),1)
self.points.append([gor_ind, ver_ind])
p_s = len(self.points)
err = 0
err2 = 0
if (p_s > 0):
qq = p_s // 8 * 4
cv2.circle(
out_img,
(int(self.points[qq - 1][0]), int(self.points[qq - 1][1])), 2,
(0, 80, 255), 1)
cv2.circle(
out_img,
(int(self.points[p_s - 1][0]), int(self.points[p_s - 1][1])),
2, (0, 80, 255), 1)
err2 = self.img_size[1]//2 - \
(self.points[p_s-1][0]+self.points[qq-1][0])/2+10
err = self.points[p_s - 1][0] - self.points[qq - 1][0]
# if show==True:
# cv2.imshow("CenterLine",out_img)
# crop = warped[warped.shape[0]-200:warped.shape[0], warped.shape[1]//10*5-50:warped.shape[1]//10*5+50].copy()
# su = np.sum(crop[:, :])
# print("su", su)
# su2 = 0
# ccc = self.img_size[1]//2
# if (p_s > 0):
# ccc = (self.points[p_s-1][0]+self.points[qq-1][0])//2
# ccc = self.img_size[1]//2
# yyyyy = 70
# crop2 = warped[yyyyy:yyyyy+80, int(ccc-40):int(ccc+32)]
# cv2.circle(out_img, (int(ccc), int((yyyyy + yyyyy + 70)/2)),
# 2, (0, 255, 255), 3)
# su2 = np.sum(crop2[:, :])
# yyyyy = 0
# crop2 = img_blur[yyyyy:yyyyy+70, int(ccc-80):int(ccc+80)]
# su2 = np.sum(crop2[:, :])-su1
# if (ccc-10) > 0 and (ccc+10) < self.img_size[1]:
# yyyyy= 70
# cv2.circle(out_img,(int(ccc),int((yyyyy + yyyyy+ 70)/2)),2,(0,255,255),3)
# crop2 = img_blur[yyyyy:yyyyy+70, int(ccc-5):int(ccc+5)]
# su2 = np.sum(crop2[:, :])
# if (err < -80 or err > 80) or (su2 > 75000): # 1866213
# err = 0
# err2 = 0
if show == True:
cv2.imshow("CenterLine", out_img)
return err, err2, out_img #, su2
import cv2
import numpy as np
from skimage.filters import threshold_adaptive
img = cv2.imread('Assets/test.jpg', 0)
img = cv2.medianBlur(img, 23)
th3 = cv2.adaptiveThreshold(img, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY, 31, 2)
cv2.imshow('image', th3)
cv2.waitKey(0)
cv2.destroyAllWindows()
# read and scale down image
# wget https://bigsnarf.files.wordpress.com/2017/05/hammer.png
img = cv2.pyrDown(cv2.imread('test2.jpg', cv2.IMREAD_UNCHANGED))
# # Apply dilation and erosion to remove some noise
# kernel = np.ones((1, 1), np.uint8)
# img = cv2.dilate(img, kernel, iterations=10)
# img = cv2.erode(img, kernel, iterations=1)
#
# # Apply blur to smooth out the edges
# img = cv2.GaussianBlur(img, (5, 5), 0)
# threshold image
# ret, threshed_img = cv2.threshold(cv2.cvtColor(img, cv2.COLOR_BGR2GRAY),
# 127, 255, cv2.THRESH_BINARY)
threshed_img = cv2.adaptiveThreshold(cv2.cvtColor(img, cv2.COLOR_BGR2GRAY),
255, cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY, 11, 2)
# find contours and get the external one
kernel = np.ones((1, 1), np.uint8)
threshed_img = cv2.dilate(threshed_img, kernel, iterations=1)
threshed_img = cv2.erode(threshed_img, kernel, iterations=1)
# img[threshed_img == 255] = 0
# img[threshed_img == 0] = 255
# threshed_img = cv2.GaussianBlur(threshed_img, (9, 9), 0)
contours, hier = cv2.findContours(threshed_img, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
# with each contour, draw boundingRect in green
import cv2
import numpy as np
# Read in
img = cv2.imread('11_2.jpg')
# Filter
# img = cv2.bilateralFilter(img, 9,75,75)
img = cv2.GaussianBlur(img, (3, 3), 0)
# Convert2binary
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
binary = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY, 3, 5)
#adaptive_method = ADAPTIVE_THRESH_MEAN_C, threshold_type=THRESH_BINARY, block_size=3, param1=5
# edges = cv2.Canny(img, 20, 150, apertureSize = 3)
# FindContours(binary,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
edges, contours, hierarchy = cv2.findContours(binary, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)
# show immediate canny image.
cv2.drawContours(img, contours, -1, (0, 0, 255), 3)
cv2.imshow("img", img)
cv2.imshow("edges", edges)
cv2.imwrite("edge.jpg", edges)
cv2.waitKey(200)
#print(hierarchy)
基于阈值方法图像分割
'''
import cv2
img = cv2.imread('output.jpg', 0)
ret, thresh1 = cv2.threshold(img, 127, 255, cv2.THRESH_BINARY) # binary （黑白二值）
ret, thresh2 = cv2.threshold(img, 127, 255, cv2.THRESH_BINARY_INV) # （黑白二值反转）
ret, thresh3 = cv2.threshold(img, 127, 255, cv2.THRESH_TRUNC) # 得到的图像为多像素值
ret, thresh4 = cv2.threshold(img, 127, 255,
cv2.THRESH_TOZERO) # 高于阈值时像素设置为255，低于阈值时不作处理
ret, thresh5 = cv2.threshold(img, 127, 255,
cv2.THRESH_TOZERO_INV) # 低于阈值时设置为255，高于阈值时不作处理
print(ret)
th6 = cv2.adaptiveThreshold(img, 255, cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY, 5, 2)
th7 = cv2.adaptiveThreshold(img, 255, cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY, 11, 2)
th8 = cv2.adaptiveThreshold(img, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY, 11, 2)
ret1, th1 = cv2.threshold(img, 127, 255, cv2.THRESH_BINARY) # 简单滤波
ret2, th2 = cv2.threshold(img, 0, 255,
cv2.THRESH_BINARY + cv2.THRESH_OTSU) # Otsu 滤波
cv2.imshow('thresh1', thresh1)
cv2.imshow('thresh2', thresh2)
cv2.imshow('thresh3', thresh3)
cv2.imshow('thresh4', thresh4)
cv2.imshow('thresh5', thresh5)
cv2.imshow('thresh6', th6)
def __threshold(self):
self.img = cv2.adaptiveThreshold(self.img, 255,
cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY, 11, 5)
# только с numpy
fun += 'np.' + fun_str[i]
return fun
f = np.vectorize(norm)
model = joblib.load("cls.pkl")
path = "C:\\Program Files\\Epic Games\\UE_4.18\\Engine\\Binaries\\Win64\\RenderTarget.png"
img = cv2.bitwise_not(cv2.imread(path))
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
gray = cv2.medianBlur(gray, 5)
thresh = cv2.adaptiveThreshold(gray, 255, 1, 1, 11, 2)
thresh_color = cv2.cvtColor(thresh, cv2.COLOR_GRAY2BGR)
thresh = cv2.dilate(thresh, None, iterations=3)
thresh = cv2.erode(thresh, None, iterations=2)
_, contours, _ = cv2.findContours(thresh, cv2.RETR_LIST,
cv2.CHAIN_APPROX_SIMPLE)
normal_contours = np.array([], dtype='int32')
for ind, cnt in enumerate(contours):
x, y, w, h = cv2.boundingRect(cnt)
if ind == 0:
normal_contours = np.array([[x, y, w, h]])
"""
import numpy as np
import cv2
from matplotlib import pyplot as plt
img = cv2.imread('b.jpg', 0)
ret,thresh1 = cv2.threshold(img, 130, 255, cv2.THRESH_BINARY)
ret,thresh2 = cv2.threshold(img, 150, 255, cv2.THRESH_BINARY_INV)
ret,thresh3 = cv2.threshold(img, 140, 255, cv2.THRESH_TRUNC)
ret,thresh4 = cv2.threshold(img, 120, 255, cv2.THRESH_TOZERO)
ret,thresh5 = cv2.threshold(img, 127, 255, cv2.THRESH_TOZERO_INV)
th2 = cv2.adaptiveThreshold(img, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, 11, 2) # ADAPTIVE THRESHOLDING
th3 = cv2.adaptiveThreshold(img, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, 11, 2)
ret2, th4 = cv2.threshold(img, 0, 255, cv2.THRESH_BINARY+cv2.THRESH_OTSU) # OTSU'S BINARIZATION
blur = cv2.GaussianBlur(img, (5, 5), 0) # Removal of noise with gaussian for OTSU'S Binarization.
ret3, th5 = cv2.threshold(blur, 0, 255, cv2.THRESH_BINARY+cv2.THRESH_OTSU)
titles = ['Original Image', 'BINARY', 'BINARY_INV', 'TRUNC', 'TOZERO', 'TOZERO_INV', 'Adaptive Mean', 'Adaptive Gaussian', 'Otsu', 'Gaussian Otsu']
images = [img, thresh1, thresh2, thresh3, thresh4, thresh5, th2, th3, th4, th5]
for i in range(10):
plt.subplot(4, 3, i+1) # Sub-plot (n rows, ncolumns, indexof the particular plot
plt.imshow(images[i], 'gray')
plt.title(titles[i])
plt.xticks([]), plt.yticks([])
import cv2 as cv
import numpy as np
img = cv.imread('sudoku.png', 0)
_, th1 = cv.threshold(img, 127, 255, cv.THRESH_BINARY)
th2 = cv.adaptiveThreshold(
img, 255, cv.ADAPTIVE_THRESH_MEAN_C, cv.THRESH_BINARY, 11,
2) # img, MaxValue, Adaptive Method, thr_type, block size, value of c
th3 = cv.adaptiveThreshold(img, 255, cv.ADAPTIVE_THRESH_GAUSSIAN_C,
cv.THRESH_BINARY, 11, 2)
cv.imshow("Image", img)
cv.imshow("th1", th1)
cv.imshow("th2", th2)
cv.imshow("th3", th3)
cv.waitKey(0)
cv.destroyAllWindows()
def segmentUpper(filename, showImages=False, save=False):
directoryExtra = '_Data/Radiographs/extra/Cropped/'
file_in = directoryExtra + filename
'''Load image and resize it to see it better'''
gray = cv2.imread(file_in, cv2.IMREAD_GRAYSCALE)
shapeGray = gray.shape
length = 1000
r = float(length) / gray.shape[1]
dim = (length, int(gray.shape[0] * r))
gray = cv2.resize(gray, dim, interpolation=cv2.INTER_AREA)
width = 100
height = 100
grayCut = gray[(int(dim[1] / 2) - height):(int(dim[1] / 2) + height),
(int(dim[0] / 2) - width):(int(dim[0] / 2) + width)]
if showImages == True:
cv2.imshow('window', gray)
grayCut = cv2.fastNlMeansDenoising(grayCut, None, 8, 7, 21)
edges = cv2.Canny(grayCut, 10, 35)
kernel = cv2.getStructuringElement(cv2.MORPH_RECT, (3, 3))
dilation = cv2.dilate(edges, kernel, iterations=1)
masked = cv2.bitwise_and(grayCut, dilation)
nonZeroValues = masked[np.nonzero(masked)]
threshold = np.mean(nonZeroValues)
print threshold
'''
gray.shape gives (y-axis, x-axis)
dim gives (x-axis, y-axis)
CARFEFUL WITH USE!!
'''
difference = 1000
x = 0
meanForeground = 0
meanBackground = 0
#Iterative thresholding
while abs(difference) > 0.0001:
meanForeground = 0
meanBackground = 0
print 'Done ', x, ' times'
x += 1
masked2 = ma.masked_greater(grayCut, threshold)
meanBackground = masked2.mean()
other = grayCut[masked2.mask]
meanForeground = other.mean()
difference = threshold - (meanForeground + meanBackground) / 2.0
threshold = (meanForeground + meanBackground) / 2.0
ret, imgThreshold = cv2.threshold(grayCut, threshold, 1, cv2.THRESH_BINARY)
imgThreshold = imgThreshold.astype(bool)
#Adaptive thresholding is made on the masked image after iterative thresholding
maskedThreshold = np.copy(grayCut)
maskedThreshold[~imgThreshold] = 0
#If the C constant is bigger than 0, more white areas are detected
imgAdaptiveGaussian = cv2.adaptiveThreshold(maskedThreshold, 1,
cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY, 51, 0)
imgAdaptiveGaussian = imgAdaptiveGaussian.astype(bool)
maskedAdaptiveGaussian = np.copy(grayCut)
maskedAdaptiveGaussian[~imgAdaptiveGaussian] = 0
imgAdaptiveGaussian = imgAdaptiveGaussian.astype(int) * 255
imgAdaptiveGaussian = imgAdaptiveGaussian.astype('uint8')
[n, d] = imgAdaptiveGaussian.shape
suma = np.zeros((n))
#Horizontal projections
for i in range(n):
for j in range(d):
suma[i] += imgAdaptiveGaussian[i, j]
minimum = np.min(suma)
indeces = []
#The horizontal projections with a value of 3 times the minimum are taken
#If the minimum was 0, the threshold is 2000
#(these thresholds were adapted experimentally)
if minimum == 0:
for i in range(n):
if suma[i] <= 2000: indeces.append(i)
else:
for i in range(n):
if suma[i] <= minimum * 3: indeces.append(i)
imgAdaptiveGaussian = cv2.cvtColor(imgAdaptiveGaussian, cv2.COLOR_GRAY2BGR)
for i in range(len(indeces)):
cv2.line(imgAdaptiveGaussian, (0, indeces[i]), (d, indeces[i]),
(0, 255, 0), 2)
if showImages == True:
cv2.imshow('Green', imgAdaptiveGaussian)
if save:
cv2.imwrite(
directoryExtra + 'upperTeeth/' + filename[:len(filename) - 12] +
'_jawSegmentation.png', imgAdaptiveGaussian)
#Now I crop the upper jaw and try to fin the teeth separation
if len(indeces) > 1:
cut = (int(np.mean(indeces)) + np.min(indeces)) / 2
cut = (int(dim[1] / 2) - height) + cut
#This is the place where I will segment the jaw
else:
cut = int(dim[1] / 2 - height + indeces[0])
width = 100
height = 150
grayCut = gray[(cut - height):cut,
(int(dim[0] / 2) - width):(int(dim[0] / 2) + width)]
grayCut = cv2.fastNlMeansDenoising(grayCut, None, 8, 7, 21)
edges = cv2.Canny(grayCut, 10, 35)
kernel = cv2.getStructuringElement(cv2.MORPH_RECT, (3, 3))
dilation = cv2.dilate(edges, kernel, iterations=1)
masked = cv2.bitwise_and(grayCut, dilation)
cv2.imshow('edges2', dilation)
nonZeroValues = masked[np.nonzero(masked)]
threshold = np.mean(nonZeroValues)
print threshold
'''
gray.shape gives (y-axis, x-axis)
dim gives (x-axis, y-axis)
CARFEFUL WITH USE!!
'''
difference = 1000
x = 0
meanForeground = 0
meanBackground = 0
#Iterative thresholding
while abs(difference) > 0.0001:
meanForeground = 0
meanBackground = 0
print 'Done ', x, ' times'
x += 1
masked2 = ma.masked_greater(grayCut, threshold)
meanBackground = masked2.mean()
other = grayCut[masked2.mask]
meanForeground = other.mean()
difference = threshold - (meanForeground + meanBackground) / 2.0
threshold = (meanForeground + meanBackground) / 2.0
ret, imgThreshold = cv2.threshold(grayCut, threshold, 1, cv2.THRESH_BINARY)
imgThreshold = imgThreshold.astype(bool)
#Adaptive thresholding is made on the masked image after iterative thresholding
maskedThreshold = np.copy(grayCut)
maskedThreshold[~imgThreshold] = 0
#If the C constant is bigger than 0, more white areas are detected
imgAdaptiveGaussian = cv2.adaptiveThreshold(maskedThreshold, 1,
cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY, 51, 0)
imgAdaptiveGaussian = imgAdaptiveGaussian.astype(bool)
maskedAdaptiveGaussian = np.copy(grayCut)
maskedAdaptiveGaussian[~imgAdaptiveGaussian] = 0
imgAdaptiveGaussian = imgAdaptiveGaussian.astype(int) * 255
imgAdaptiveGaussian = imgAdaptiveGaussian.astype('uint8')
[n, d] = imgAdaptiveGaussian.shape
if showImages == True:
cv2.imshow('window2', grayCut)
if save:
cv2.imwrite(
directoryExtra + 'upperTeeth/' + filename[:len(filename) - 12] +
'_upperTeeth.png', grayCut)
suma2 = np.zeros((d))
#Vertical projections
for j in range(d):
for i in range(n):
suma2[j] += imgAdaptiveGaussian[i, j]
minimum = min(suma2)
indeces2 = []
#The vertical projections with a value of 3 times the minimum are taken
#If the minimum was 0, the threshold is 2000
#(these thresholds were adapted experimentally)
if minimum == 0:
for i in range(d):
if suma2[i] <= 2000: indeces2.append(i)
else:
for i in range(d):
if suma2[i] <= minimum * 3: indeces2.append(i)
imgAdaptiveGaussian2 = cv2.cvtColor(imgAdaptiveGaussian,
cv2.COLOR_GRAY2BGR)
for i in range(len(indeces2)):
cv2.line(imgAdaptiveGaussian2, (indeces2[i], 0), (indeces2[i], n),
(0, 255, 0), 2)
if showImages == True:
cv2.imshow('Green2', imgAdaptiveGaussian2)
if save:
cv2.imwrite(
directoryExtra + 'upperTeeth/' + filename[:len(filename) - 12] +
'_upperTeethSeparation.png', imgAdaptiveGaussian2)
meanValue = int(round(np.mean(indeces2)))
imgAdaptiveGaussian3 = cv2.cvtColor(imgAdaptiveGaussian,
cv2.COLOR_GRAY2BGR)
if showImages == True:
cv2.line(imgAdaptiveGaussian3, (meanValue, 0), (meanValue, n),
(0, 255, 0), 2)
cv2.imshow('Green3', imgAdaptiveGaussian3)
meanValue = int(round((dim[0] / 2 - width + meanValue + dim[0] / 2) / 2.0))
point = np.array([cut, meanValue])
gray2 = gray.copy()
gray2 = gray2[(point[0] - 200):point[0],
(point[1] - width):(point[1] + width)]
if save:
cv2.imwrite(
directoryExtra + 'upperTeeth/' + filename[:len(filename) - 12] +
'_upperTeethFinal.png', gray2)
cv2.imshow('final', gray2)
print n, d
point[0] *= float(shapeGray[0]) / dim[1]
point[1] *= float(shapeGray[1]) / dim[0]
return point
def extracTextFromImage(imgTestingNumbers):
allContoursWithData = [] # declare empty lists,
validContoursWithData = [] # we will fill these shortly
try:
npaClassifications = np.loadtxt("classifications.txt", np.float32) # read in training classifications
except:
print "error, unable to open classifications.txt, exiting program\n"
os.system("pause")
return
# end try
try:
npaFlattenedImages = np.loadtxt("flattened_images.txt", np.float32) # read in training images
except:
print "error, unable to open flattened_images.txt, exiting program\n"
os.system("pause")
return
# end try
npaClassifications = npaClassifications.reshape((npaClassifications.size, 1)) # reshape numpy array to 1d, necessary to pass to call to train
kNearest = cv2.ml.KNearest_create() # instantiate KNN object
kNearest.train(npaFlattenedImages, cv2.ml.ROW_SAMPLE, npaClassifications)
# imgTestingNumbers = cv2.imread("test/output (8).png") # read in testing numbers image
if imgTestingNumbers is None: # if image was not read successfully
print "error: image not read from file \n\n" # print error message to std out
os.system("pause") # pause so user can see error message
return # and exit function (which exits program)
# end if
# imgGray = cv2.cvtColor(imgTestingNumbers, cv2.COLOR_BGR2GRAY) # get grayscale image
imgBlurred = cv2.GaussianBlur(imgTestingNumbers, (5,5), 0) # blur
# filter image from grayscale to black and white
imgThresh = cv2.adaptiveThreshold(imgBlurred, # input image
255, # make pixels that pass the threshold full white
cv2.ADAPTIVE_THRESH_GAUSSIAN_C, # use gaussian rather than mean, seems to give better results
cv2.THRESH_BINARY_INV, # invert so foreground will be white, background will be black
15, # size of a pixel neighborhood used to calculate threshold value
1) # constant subtracted from the mean or weighted mean
imgThreshCopy = imgThresh.copy() # make a copy of the thresh image, this in necessary b/c findContours modifies the image
# cv2.imshow('thresimg',imgThreshCopy)
imgContours, npaContours, npaHierarchy = cv2.findContours(imgThreshCopy, # input image, make sure to use a copy since the function will modify this image in the course of finding contours
cv2.RETR_EXTERNAL, # retrieve the outermost contours only
cv2.CHAIN_APPROX_SIMPLE) # compress horizontal, vertical, and diagonal segments and leave only their end points
for npaContour in npaContours: # for each contour
contourWithData = ContourWithData() # instantiate a contour with data object
contourWithData.npaContour = npaContour # assign contour to contour with data
contourWithData.boundingRect = cv2.boundingRect(contourWithData.npaContour) # get the bounding rect
contourWithData.calculateRectTopLeftPointAndWidthAndHeight() # get bounding rect info
contourWithData.fltArea = cv2.contourArea(contourWithData.npaContour) # calculate the contour area
allContoursWithData.append(contourWithData) # add contour with data object to list of all contours with data
# end for
for contourWithData in allContoursWithData: # for all contours
if contourWithData.checkIfContourIsValid(): # check if valid
validContoursWithData.append(contourWithData) # if so, append to valid contour list
# end if
# end for
validContoursWithData.sort(key = operator.attrgetter("intRectX")) # sort contours from left to right
strFinalString = "" # declare final string, this will have the final number sequence by the end of the program
for contourWithData in validContoursWithData: # for each contour
# draw a green rect around the current char
cv2.rectangle(imgTestingNumbers, # draw rectangle on original testing image
(contourWithData.intRectX, contourWithData.intRectY), # upper left corner
(contourWithData.intRectX + contourWithData.intRectWidth, contourWithData.intRectY + contourWithData.intRectHeight), # lower right corner
(0, 255, 0), # green
2) # thickness
imgROI = imgThresh[contourWithData.intRectY : contourWithData.intRectY + contourWithData.intRectHeight, # crop char out of threshold image
contourWithData.intRectX : contourWithData.intRectX + contourWithData.intRectWidth]
imgROIResized = cv2.resize(imgROI, (RESIZED_IMAGE_WIDTH, RESIZED_IMAGE_HEIGHT)) # resize image, this will be more consistent for recognition and storage
npaROIResized = imgROIResized.reshape((1, RESIZED_IMAGE_WIDTH * RESIZED_IMAGE_HEIGHT)) # flatten image into 1d numpy array
npaROIResized = np.float32(npaROIResized) # convert from 1d numpy array of ints to 1d numpy array of floats
retval, npaResults, neigh_resp, dists = kNearest.findNearest(npaROIResized, k = 1) # call KNN function find_nearest
strCurrentChar = str(chr(int(npaResults[0][0]))) # get character from results
strFinalString = strFinalString + strCurrentChar # append current char to full string
# end for
# print " " + strFinalString + "" # show the full string
# cv2.imshow("imgTestingNumbers", imgTestingNumbers) # show input image with green boxes drawn around found digits
# cv2.waitKey(0) # wait for user key press
# cv2.destroyAllWindows() # remove windows from memory
return strFinalString
def HSUDetect(img):
#Getting images + applying thresholding
black = np.zeros((240, 320, 3),
dtype="uint8") #Completely Black Image, (width, height
#To get rid of buffer
'''
for i in range(9):
cap.grab()
'''
orig = img
frame = cv2.cvtColor(orig, cv2.COLOR_BGR2GRAY)
img = cv2.GaussianBlur(frame, (9, 9), 6)
dst = cv2.adaptiveThreshold(
img, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV, 17,
2) #cv2.THRESH_BINARY, 15, -1) #cv2.THRESH_BINARY_INV, 17, 2)
#dum, dst = cv2.threshold(img,20,255,cv2.THRESH_BINARY_INV+cv2.THRESH_OTSU)
(cont, h) = cv2.findContours(dst.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
# Contour Filter (by area and dimension filtering)
threshold_area = 500 #threshold area
aCount = 0
hCount = 0
for i in range(0, len(cont)):
area = cv2.contourArea(cont[i])
x, y, width, height = cv2.boundingRect(cont[i])
if area < threshold_area:
cv2.drawContours(dst, cont, i, (0, 0, 0), cv2.FILLED)
#aCount+=1
if height > 200:
cv2.drawContours(dst, cont, i, (0, 0, 0), cv2.FILLED)
if width > 200:
cv2.drawContours(dst, cont, i, (0, 0, 0), cv2.FILLED)
if height * width > 22500:
cv2.drawContours(dst, cont, i, (0, 0, 0), cv2.FILLED)
#print("Area Filtered: " + str(aCount))
#Finding Contours:
(contours, h) = cv2.findContours(dst.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
cv2.imwrite("parsedimg.png", dst)
#print(len(contours))
if len(contours) == 0:
print("No Letters!")
return None
dstcopy = dst.copy()
#Countour manipulation to get region of interest
c = max(contours, key=cv2.contourArea) # largest countour
contourcolor = (255, 255, 255) #B, G, R
x, y, w, h = cv2.boundingRect(c)
if x > 5:
x -= 5
if y > 5:
y -= 5
w += 10
h += 10
#print("x: {}, y: {}, w:{}, h:{}".format(x,y,w,h))
#Drawing Countours or Green Contours:
cv2.rectangle(orig, (x, y), (x + w, y + h), (0, 255, 0),
2) # draw the book contour (in green)
#cv2.rectangle(black, (x,y), (x+w, y+h), (255,255,0), 2)
#cv2.drawContours(black, c, -1, contourcolor, -1)#, cv2.FILLED)
#cv2.drawContours(orig, contours, -1, contourcolor, 3) #-1 is index of countour to draw. -1 means all. 3 - thickness of the lines
# Image rotation
sliced = dst[y:y + h, x:x + w]
angle = cv2.minAreaRect(c)[-1]
#(h, w) = sliced.shape[:2]
#print ("h:{0} w:{1}".format(h,w))
center = (w // 2, h // 2)
M = cv2.getRotationMatrix2D(center, angle, 1.0)
dst2 = cv2.warpAffine(sliced,
M, (w, h),
flags=cv2.INTER_CUBIC,
borderMode=cv2.BORDER_CONSTANT)
(h2, w2) = dst2.shape
print("h:{0} w:{1}".format(h2, w2))
# Grabbing contour of rotated image (determine if needs 90 deg rotate)
(contours, __) = cv2.findContours(dst2.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
c2 = max(contours, key=cv2.contourArea) # largest countour
x2, y2, w2, h2 = cv2.boundingRect(c2)
'''x2 += 10
y2 += 10
w2 -= 10
h2 -= 10'''
#print("x2: {}, y2: {}, w2:{}, h2:{}".format(x2,y2,w2,h2))
#cv2.rectangle(dst2,(x2,y2),(x2+w2,y2+h2),(255,255,255),2)
#print(angle)
# Rotates 90 if needed
if (w2 >= h2): #width must be smaller than height
dst2 = RotateImage(dst2, 90, 1.0)
#Slicing Image
# top = dst[y:y+int(0.33*h), x:x+w]
# mid = dst[y+int(0.38*h):y+int(0.63*h), x:x+w]
# smid = dst[y+int(0.45*h):y+int(0.55*h), x:x+w]
# bot = dst[y+int(0.66*h):y+h, x:x+w]
#dum, dst2 = cv2.threshold(dst2,20,255,cv2.THRESH_BINARY+cv2.THRESH_OTSU)
#Filtering due to random tiny contours from rotating the image (area filter)
(cont, h) = cv2.findContours(dst2.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
threshold_area = 100 #threshold area
for i in range(0, len(cont)):
area = cv2.contourArea(cont[i])
if area < threshold_area:
cv2.drawContours(dst2, cont, i, (0, 0, 0), cv2.FILLED)
#dst = cv2.adaptiveThreshold( img, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV, 17, 2)
# Gathering slices
(roiy, roix) = dst2.shape
# print ("y:{0} x:{1}".format(y,x))
top = dst2[0:(roiy // 3), 0:roix]
mid = dst2[int(roiy * 0.37):int(roiy * 0.63), 0:roix]
smid = dst2[8 + int(roiy * 0.40):int(roiy * 0.55), 0:roix]
bot = dst2[2 * roiy // 3:roiy, 0:roix]
# Area filter on each of the slices
(contop, h) = cv2.findContours(top.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
(conmid, h) = cv2.findContours(mid.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
(consmid, h) = cv2.findContours(smid.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE) #For S
(conbot, h) = cv2.findContours(bot.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
areaFilter(top, contop, 20)
areaFilter(mid, conmid, 20)
areaFilter(smid, consmid, 20)
areaFilter(bot, conbot, 20)
#Calculating HSU
(contop, h) = cv2.findContours(top.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
(conmid, h) = cv2.findContours(mid.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
(consmid, h) = cv2.findContours(smid.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE) #For S
(conbot, h) = cv2.findContours(bot.copy(), cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
'''
widthmin = 20
widthmax = 300
heightmin = 20
heightmax = 300
print("Top: {}, Mid: {}, Bot: {}".format(len(contop), len(conmid), len(conbot)))
for cnt in contop:
rect = cv2.minAreaRect(cnt) #I have used min Area rect for better result
width = rect[1][0]
height = rect[1][1]
if (width>widthmax) and (height >heightmax) and (width <= widthMin) and (height < heightMin):
del cnt
cv2.drawContours(black, contop, 0, contourcolor, 3)
'''
# Determing HSU
print("Top: {}, Mid: {}, SMid: {}, Bot: {}".format(len(contop),
len(conmid),
len(consmid),
len(conbot)))
if len(contop) == 2 and len(conmid) == 1 and len(conbot) == 2:
print("H DETECTED")
elif len(contop) == 1 and len(consmid) == 1 and len(conbot) == 1:
print("S DETECTED")
elif (len(contop) == 2 and len(conmid) == 2
and len(conbot) == 1) or (len(contop) == 1 and len(conmid) == 2
and len(conbot) == 2):
print("U DETECTED")
#Showing Image
# cv2.imshow('Camera1', frame)
cv2.imshow('dst', dst)
cv2.imshow("RETR_EXTERNAL", orig)
# cv2.imshow('black', black)
# cv2.imshow('slice', sliced)
cv2.imshow('dst2', dst2)
(smidh, smidw) = smid.shape
cv2.imshow('top', top)
cv2.imshow('mid', mid)
if smidh != 0 and smidw != 0:
cv2.imshow('smid', smid)
cv2.imshow('bot', bot)
kernelOp = np.ones((3, 3), np.uint8)
kernelCl = np.ones((9, 9), np.uint8)
# areaTH=area minima para considerar uma pessoa
areaTH = 500
i = 0
n_cont = 0
while (cap.isOpened()):
ret, frame = cap.read() #read a frame
#i=i+1
#if (i>30000):
fgmask = fgbg.apply(frame) #Use the substractor
try:
#threshold: If pixel value is greater than a threshold value, it is assigned one value (may be white), else it is assigned another value (may be black).First argument is the source image, which should be a grayscale image. Second argument is the threshold value which is used to classify the pixel values. Third argument is the maxVal which represents the value to be given if pixel value is more than (sometimes less than) the threshold value. OpenCV provides different styles of thresholding and it is decided by the fourth parameter of the function.
#Adaptive thresholding: In this, the algorithm calculate the threshold for a small regions of the image. So we get different thresholds for different regions of the same image and it gives us better results for images with varying illumination.
#ver http://docs.opencv.org/trunk/d7/d4d/tutorial_py_thresholding.html
imBin = cv2.adaptiveThreshold(fgmask,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C,\
cv2.THRESH_BINARY_INV,11,2)
#Opening (erode->dilate) para tirar ruido.
mask = cv2.morphologyEx(imBin, cv2.MORPH_OPEN, kernelOp)
#Closing (dilate -> erode) para juntar regioes brancas.
mask = cv2.morphologyEx(mask, cv2.MORPH_CLOSE, kernelCl)
except:
#if there are no more frames to show...
print('EOF')
break
#finding contours is like finding white object from black background. Object to be found should be white and background should be black.
#cv2.RETR_EXTERNAL means we only care about external contours (contours within contours will not be detected)
#cv2.CHAIN_APPROX_NONE is the algorithm used to make the contour
#ver mais http://docs.opencv.org/3.2.0/d4/d73/tutorial_py_contours_begin.html
_, contours0, hierarchy = cv2.findContours(mask, cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_NONE)
for cnt in contours0:
def execute(self):
img=self.img
#gray is used for classification and search, gray_c only for search
gray=cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
clahe = cv2.createCLAHE(clipLimit=2.0, tileGridSize=(4,8))
gray_c = clahe.apply(gray)
#guess 'white' color
epsilon=0.0001
white=np.median(gray)
white=np.mean(gray[gray>white-epsilon])
white_c=np.median(gray_c)
white_c=np.mean(gray_c[gray_c>white_c-epsilon])
window=21
#adaptive mean
th2 = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, window, 2)
#adaptive gaussian
th3 = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, window, 2)
#Otsu's
_,th4 = cv2.threshold(gray,0,255,cv2.THRESH_BINARY+cv2.THRESH_OTSU)
#adaptive mean
th_c2 = cv2.adaptiveThreshold(gray_c, 255, cv2.ADAPTIVE_THRESH_MEAN_C, cv2.THRESH_BINARY, window, 2)
#adaptive gaussian
th_c3 = cv2.adaptiveThreshold(gray_c, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY, window, 2)
#Otsu's
_,th_c4 = cv2.threshold(gray_c,0,255,cv2.THRESH_BINARY+cv2.THRESH_OTSU)
#extend borders(probably only needed for detectMultiscale)
img=cv2.copyMakeBorder(img, 4, 4, 2, 2, cv2.BORDER_CONSTANT, value=(int(white), int(white), int(white)))
gray=cv2.copyMakeBorder(gray, 4, 4, 2, 2, cv2.BORDER_CONSTANT, value=int(white))
gray_c=cv2.copyMakeBorder(gray_c, 4, 4, 2, 2, cv2.BORDER_CONSTANT, value=int(white_c))
ths=[th2, th3, th4, th_c2, th_c3, th_c4]
for i in xrange(len(ths)):
ths[i]=cv2.copyMakeBorder(ths[i], 4, 4, 2, 2, cv2.BORDER_CONSTANT, value=255)
th2, th3, th4, th_c2, th_c3, th_c4 = ths
self.debug(img, "svm_img")
self.debug(gray, "svm_gr")
self.debug(gray_c, "svm_gr_c")
self.debug(th2, "svm_th2")
self.debug(th3, "svm_th3")
self.debug(th4, "svm_th4")
self.debug(th_c2, "svm_th_c2")
self.debug(th_c3, "svm_th_c3")
self.debug(th_c4, "svm_th_c4")
plate=[]
min_height=10
min_width=5
min_area=70
epsilon=0.00001
@memoize
def max_score_hsplit(box, n=3):
x,y,w,h=box
l,s=max_score(box)
if s<0.0:
l_s=[(s, [(l,s,box)])]
else:
l_s=[(epsilon, [(l,epsilon,box)])]
if n>1:
for w0 in xrange(1, w):
if w0*h<min_area or w0<min_width or h<min_height:
l0, s0=(None, epsilon)
else:
l0, s0=max_score((x,y,w0,h))
if (w-w0)*h<min_area or (w-w0)<min_width or h<min_height:
s1, ls1=(epsilon, [(None, epsilon, (x+w0,y,w-w0,h))])
else:
s1, ls1=max_score_hsplit((x+w0,y,w-w0,h),n-1)
if s0>epsilon:
s0=epsilon
score=(s0*w0+s1*(w-w0)+0.0)/w
l_s+=[(score, [(l0, s0, (x,y,w0,h))]+ls1)]
return min(l_s)
#functions defined as closures to avoid passing multiple and/or complex arguments
#which allows memoize_simple use and autoresets after execute comletion
def compute_hog(box):
X,Y,W,H=box
gray_=gray[Y-1:Y+H+1, X-1:X+W+1] #FIXME should check area bounds
winSize = (20, 30)
blockSize = (4,6)
blockStride = (2,3)
cellSize = (2,3)
nbins=9
winStride = (20,30)
padding = (0,0)
gray_=cv2.resize(gray_, winSize, interpolation = cv2.INTER_CUBIC)
hog=cv2.HOGDescriptor(winSize, blockSize,blockStride,cellSize, nbins)
desc = hog.compute(gray_, winStride, padding, ((0, 0),))
return desc
letters=['1','2','3','4','5','6','7','8','9','0O','A','B','C','E','H','K','M','P','T','X','Y']
@memoize_simple
def max_score(box):
x,y,w,h=box
if w*h<min_area or w<min_width or h<min_height:
return (None, 1.0)
desc=compute_hog(box)
l_s=[(l, -self.svm_letters[l].predict(desc, returnDFVal=True)) for l in letters]
return min(l_s, key=lambda x: x[1])
letter_ligatures=['8dot', 'dotO', 'dotM', 'dotB', 'dotC', 'dotH', 'dotE', 'dotP']
@memoize_simple
def max_score_ligatures(box):
x,y,w,h=box
if w*h<min_area or w<min_width or h<min_height:
return (None, 1.0)
desc=compute_hog(box)
l_s=[(l, -self.svm_letters[l].predict(desc, returnDFVal=True)) for l in letter_ligatures]
return min(l_s, key=lambda x: x[1])
h1_candidates=[10,5]
h2_candidates=[16,22]
@memoize_simple
def max_score_vsplit(box):
x,y,w,h=box
l_s=[]
min_score=1.0
min_letter=None
min_box=(x,y,w,h)
for h1 in h1_candidates:
for h2 in h2_candidates:
l,s=max_score((x,h1,w,h2))
s=s*h2/(h+0.0)
if s<min_score:
min_score=s
min_letter=l
min_box=(x,h1,w,h2)
return min_letter, min_score, min_box
def max_score_hsplit3(box):
x,y,w,h=box
min_score=1.0
min_letter=None
min_box=(x,y,w,h)
for w1 in xrange(0,min(w-min_width,10)):
for w2 in xrange(min_width, min(w-w1,16)):
b_=(x+w1,y,w2,h)
l,s,b=max_score_vsplit(b_)
s=s/(w+0)*w2
if s<min_score:
min_score=s
min_letter=l
min_box=b
return min_score, min_letter, min_box
#replacing original compute_hog with memoized version
#will be restored after ligatures detection
compute_hog_raw=compute_hog
compute_hog=memoize_simple(compute_hog)
boxes=[]
for th in ths:
boxes+=self.get_boxes_from_contour(th, gray)
boxes=list(set(boxes)) #get uniq boxes
#annotate each box with name for debug, letter, score, cropped image
boxes=[box+(str(box), None, 1.0, None) for box in boxes]
#search all boxes for letters
boxes_left=[]
while boxes:
X,Y,W,H,m,min_letter,min_score,b_img = boxes.pop()
b_img=gray[Y-1:Y+H+1, X-1:X+W+1]
self.debug(b_img, "svm1_t_"+str(m))
min_letter, min_score=max_score((X,Y,W,H))
if min_score<0:
self.debug(b_img, "svm1_f_"+min_letter+"_"+str(m))
plate+=[(min_letter, (X,Y,W,H), -min_score)]
else:
boxes_left+=[(X,Y,W,H,m,min_letter,min_score, b_img)]
#prune plate, distructive to origianl
plate=prune_plate(plate, threshold=0.799)
#are we done?
#RUSSIAN PLATE TYPE1 SPECIFIC
alphas, nums, alphanums=get_stats_symbols(plate)
if alphanums>=9:
return TaskResultSVMLetterDetector(plate)
#prune boxes by content
hranges=get_free_hranges(gray, plate, 2)
hranges=range_diff_many([(0,gray.shape[1])], [(r[0], r[1]-r[0]+1) for r in hranges])
hranges=[r for r in hranges if r[1]>0]
boxes=boxes_left
boxes_left=[]
while boxes:
X,Y,W,H,m,min_letter,min_score,b_img = boxes.pop()
fr=range_diff_many([(X,W)], hranges)
for r in fr:
X, W=r
if W<min_width:
continue
b_img=gray[Y-1:Y+H+1, X-1:X+W+1]
min_letter, min_score=max_score((X,Y,W,H))
m_r=str(m)+"_"+str(r)
boxes_left+=[(X,Y,W,H,m_r,min_letter,min_score, b_img)]
self.debug(b_img, "svm1_t2_"+str(m_r))
#search known 'ligatures'
boxes=boxes_left
boxes_left=[]
while boxes:
X,Y,W,H,m,min_letter,min_score,b_img = boxes.pop()
min_letter_new, min_score_new=max_score_ligatures((X,Y,W,H))
if min_score_new<0:
min_letter=min_letter_new.replace('dot','').replace('O','0O')
min_score=min_score_new
self.debug(b_img, "svm1_fl_"+min_letter+"_"+str(m))
plate+=[(min_letter, (X,Y,W,H), -min_score)]
else:
boxes_left+=[(X,Y,W,H,m,min_letter,min_score,b_img)]
#prune plate, distructive to origianl
plate=prune_plate(plate, threshold=0.799)
#replace score if ligaturazed version if better
#FIXME maybe just recrop?
for i in xrange(len(plate)):
letter, box, score = plate[i]
X,Y,W,H = box
if letter in ['8', 'O0', 'M', 'B', 'C', 'H', 'E', 'P']:
if letter=='8':
ligature='8dot'
elif letter=='0O':
ligature='dotO'
else:
ligature='dot'+letter
desc=compute_hog(box)
score=max(score, self.svm_letters[ligature].predict(desc, returnDFVal=True))
plate[i]=(letter, (X,Y,W,H), score)
#are we done?
#RUSSIAN PLATE TYPE1 SPECIFIC
alphas, nums, alphanums=get_stats_symbols(plate)
if alphanums>=9:
return TaskResultSVMLetterDetector(plate)
#search by splitting
boxes=boxes_left
boxes_left=[]
while boxes:
X,Y,W,H,m,min_letter,min_score,b_img = boxes.pop()
s, splt=max_score_hsplit((X,Y,W,H), n=3)
for k in xrange(len(splt)):
letter_s, score_s, box_s=splt[k]
if score_s<0:
b_img_s=gray[box_s[1]-1:box_s[1]+box_s[3]+1, box_s[0]-1:box_s[0]+box_s[2]+1]
self.debug(b_img_s, "svm1_fspl_"+letter_s+"_"+str(m)+"_"+str(k))
plate+=[(letter_s, box_s, -score_s)]
if s>0:
self.debug(b_img, "svm1_nf_"+str(m))
#restore original compute_hog
compute_hog_raw=compute_hog_raw
#prune plate, distructive to original
plate=prune_plate(plate, threshold=0.799) #distructive
#plate=sorted(plate, key=lambda x: x[1][0]+x[1][2]/2.0)
#'bruteforce' search
hranges=[(r[0], r[1]-r[0]+1) for r in get_free_hranges(gray, plate, 2)]
h1_cnds=list(set([l[1][1] for l in plate]))
h2_cnds=list(set([l[1][3] for l in plate]))
if len(h1_cnds)>2:
h1_candidates=h1_cnds
if len(h2_cnds)>2:
h2_candidates=h2_cnds
ws=[l[1][2] for l in plate]
if ws:
min_width=max(min_width, int(np.floor(min(ws)*0.75)))
max_width=20
for r in hranges:
x,w=r
if w<min_width:
continue
if x==0:
x+=1
if x+w==gray.shape[1]:
w-=1
scores=[max_score_hsplit3((x+i, 0, min(w-i,max_width), gray.shape[0])) for i in xrange(0,w-min_width,3)]
for s in [s for s in scores if s[0]<0.0]:
min_letter, min_score=max_score(s[2])
b_img=gray[s[2][1]-1:s[2][1]+s[2][3]+1, s[2][0]-1:s[2][0]+s[2][2]+1]
self.debug(b_img, "svm1_fbf_"+min_letter+"_"+str(s[2]))
plate+=[(min_letter, s[2], -min_score)]
plate=prune_plate(plate, threshold=0.799) #distructive
return TaskResultSVMLetterDetector(plate)
def apply_w_shed_segmentation(img_8bit, adapThresh_blcokSize,
adapThresh_constant, min_distance):
img_8bit_copy = img_8bit.copy()
img_8bit_copy = cv2.cvtColor(img_8bit_copy, cv2.COLOR_GRAY2BGR)
height, width = img_8bit.shape[:2]
# binarise image
img_binary = cv2.adaptiveThreshold(img_8bit, 255,
cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY, adapThresh_blcokSize,
adapThresh_constant)
# modify the binary image by filling holes
img_binary = fill_holes_in_binary_image(img_binary)
# watershed segmentation
D = ndimage.distance_transform_edt(img_binary)
localMax = peak_local_max(D,
indices=False,
min_distance=min_distance,
labels=img_binary)
markers = ndimage.label(localMax, structure=np.ones((3, 3)))[0]
labels = watershed(
-D, markers,
mask=img_binary) # If returned warning, upgrade to latest Skimage
sp_arr = csr_matrix(labels.reshape(1, -1))
labels_shape = labels.shape
cluster_index_total = len(np.unique(sp_arr.data))
cluster_index_list = np.arange(1, cluster_index_total +
1) # excluding index = [background]
# keep positions
points = np.zeros([20000, 2], dtype=int)
X, Y = 0, 1
n_cell = 0
# go through non-zero values in the sparsed version of the 'labels' array
# for i in np.unique(sp_arr.data)[1:10]: # as a bonus this `unique` call should be faster too
for cluster_index in cluster_index_list: # OR for i in np.unique(sp_arr.data)
# get mask image and its top-left corner position
cnt_mask, cnt_topLeft_P = get_cnt_mask(cluster_index, sp_arr,
labels_shape)
# detect contours in the cnt_mask and grab the largest one
cnt = get_contour_in_mask(cnt_mask, cnt_topLeft_P)
if len(cnt) >= 5:
ellipse = cv2.fitEllipse(cnt)
(x, y), (MA, ma), angle = ellipse
centre = (int(x), int(y))
points[n_cell][X] = x
points[n_cell][Y] = height - y
ellipse_area = np.pi * (MA / 2.0) * (ma / 2.0)
# cv2.ellipse(img_8bit_copy, ellipse, (255,0,0), 1)
cv2.drawContours(img_8bit_copy, [cnt], 0, (0, 255, 0), 1)
# cv2.circle(img_8bit_copy, centre, 1, (255,255,255), 1)
n_cell += 1
print("Total No of cells: ", n_cell)
points = points[0:n_cell]
return points, img_8bit_copy
def load_thresholded_image(image_path, x=11, y=5):
data = read_data(image_path).reshape(16 * 660, 512, order="A")
data *= 255 / data.max()
data = data.astype(np.uint8)
return cv2.adaptiveThreshold(data, 255, cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY, x, y)
import cv2
import numpy as np
img = cv2.imread('closeTest/closerubix2.jpg')
small = cv2.imread('normSquare.png', 0)
grayscale = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
gray = cv2.adaptiveThreshold(grayscale, 255, cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY, 31, 7)
#gray = cv2.erode(gray, kernelg)
cv2.imshow('adaptive thresh', gray)
cv2.waitKey(0)
kernel2 = np.ones((8, 5), np.uint8)
#gray = cv2.erode(gray, kernel2)
cv2.imshow('adaptive thresh', gray)
cv2.waitKey(0)
contours, hierarchy = cv2.findContours(gray, cv2.RETR_LIST,
cv2.CHAIN_APPROX_SIMPLE)
contours_small, hierarchy_small = cv2.findContours(small.copy(), cv2.RETR_LIST,
cv2.CHAIN_APPROX_SIMPLE)
cnt1 = contours[0]
squares = []
for cnt in contours:
ret = cv2.matchShapes(cnt1, cnt, 1, 0.0)
area = cv2.contourArea(cnt)
print ret
print 'this is area'
print area
scale = booksScaleDictionary[bookName]
def rescaleFrame(frame, scale):
width = int(frame.shape[1] * scale)
len = int(frame.shape[0] * scale)
dim = (width, len)
return cv.resize(frame, dim, interpolation=cv.INTER_AREA)
img = rescaleFrame(img, scale)
gray = cv.cvtColor(img, cv.COLOR_BGR2GRAY)
cv.imshow('Gray', gray)
blur = cv.GaussianBlur(gray, (3, 3), 9)
threshold = cv.adaptiveThreshold(blur, 255, cv.CALIB_CB_ADAPTIVE_THRESH,
cv.THRESH_BINARY, 13, 3)
kernel = np.ones((2, 2), np.uint8)
threshold = cv.erode(threshold, kernel, iterations=1)
# Performs flood fill and report height and width of the image
def dfs(image, n, m, begi, begj, i, j, height, width, color):
if (i >= n) or (j >= m) or (i < 0) or (j < 0):
return
if image[i][j] != 255:
return
image[i][j] = color
dfs(image, n, m, begi, begj, i + 1, j, height, width, color)
dfs(image, n, m, begi, begj, i, j + 1, height, width, color)
dfs(image, n, m, begi, begj, i - 1, j, height, width, color)
dfs(image, n, m, begi, begj, i, j - 1, height, width, color)
R, G, B = cv2.split(RGB)
#Create a CLAHE object: The image is divided into small block 8x8 which they are equalized as usual.
clahe = cv2.createCLAHE(clipLimit=2.5, tileGridSize=(8, 8))
#Applying this method to each channel of the color image
output_2R = clahe.apply(R)
output_2G = clahe.apply(G)
output_2B = clahe.apply(B)
#mergin each channel back to one
img_output = cv2.merge((output_2R, output_2G, output_2B))
#coverting image from RGB to Grayscale
eq = cv2.cvtColor(img_output, cv2.COLOR_BGR2GRAY)
#Using image thresholding to classify pixels as dark or light
#This method provides changes in illumination and the contrast of the image is improved.
gauss = cv2.adaptiveThreshold(eq, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY, 17, 45)
def cropText(img, clear_image):
edges = cv2.Canny(img, 100, 200) #canny edge detection
kernel = cv2.getStructuringElement(
cv2.MORPH_CROSS, (3, 3)) # Define the area of focus around each pixel
dilation = cv2.dilate(
edges, kernel,
iterations=9) # dilate merge all edges into one big group
_, contours, hierarchy = cv2.findContours(
dilation, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE
) # This method returns 3 variables for getting contours
for contour in contours:
# get sizes of the rectangle return by the contours
[x, y, w, h] = cv2.boundingRect(contour)
croppedImgszzz = []
height = 15
width = 11
x = 349
y = 338
cv2.rectangle(croppedImg, (x, y), (x+width, y+ height), (255, 255, 0), 1)
croppedImgszzz.append(croppedGrayImg[y:y+height,x:x+width])
x = 397
cv2.rectangle(croppedImg, (x, y), (x+width, y+ height), (255, 255, 0), 1)
croppedImgszzz.append(croppedGrayImg[y:y+height,x:x+width])
numpy.set_printoptions(linewidth=500)
bitArray = []
for i in range (len(croppedImgszzz)):
th3 = cv2.adaptiveThreshold(croppedImgszzz[i],255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C,\
cv2.THRESH_BINARY,11,2)
bitArray.append(th3)
for k in range(2):
print (bitArray[k])
time.sleep(1)
#######################################################################################################################
#Identify Value inside contours and reduce # to two (this will only happen if a card is highlighted twice
#SHOULD IDENTIFY DIGITS %
#Identify Color boundaries
# define the list of boundaries
def thresholdify(self, img):
img = cv2.adaptiveThreshold(img.astype(np.uint8), 255,
cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY, 11, 3)
return 255 - img
#pip install pytesseract
#pip install opencv-python
import cv2
import numpy as np
from pytesseract import Output
import pytesseract
import cv2
img = cv2.imread('img1.jpg')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
blur = cv2.medianBlur(gray, 3, 0)
thresh = cv2.adaptiveThreshold(blur, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY_INV, 11, 30)
mask = cv2.threshold(img, 120, 250, cv2.THRESH_BINARY_INV)[1][:, :, 0]
dst = cv2.inpaint(img, mask, 20, cv2.INPAINT_TELEA)
file1 = open("result.txt", "w")
custom_config = r'-c tessedit_char_blacklist= --psm 6'
rgb = cv2.cvtColor(thresh, cv2.COLOR_BGR2RGB)
results = pytesseract.image_to_data(rgb,
output_type=Output.DICT,
config=custom_config)
cord = []
for i in range(0, len(results["text"])):
x = results["left"][i]
y = results["top"][i]
resize_scale = 0.85
new_x, new_y = image.shape[1]*resize_scale, image.shape[0]*resize_scale
image = cv2.resize(image,(int(new_x),int(new_y)))
height, width, depth = image.shape
# cv2.imshow("Image", image)
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
# cv2.imshow("gray", gray)
median = cv2.medianBlur(gray, 7)
blur = cv2.GaussianBlur(median, (5,5), 0)
# cv2.imshow("blur", blur)
thresh = cv2.adaptiveThreshold(median, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV, 15, 2)
# cv2.imshow("thresh", thresh)
_, contours, _ = cv2.findContours(thresh, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
max_area = 0
c = 0
for i in contours:
area = cv2.contourArea(i)
if area > height * width / 2:
if area > max_area:
max_area = area
best_cnt = i
# image = cv2.drawContours(image, contours, c, (0, 255, 0), 3)
c+=1
def Adaptive_Thresolding():
inpath = os.path.join(os.getcwd(), ".\\Scaned image\\.", "")
for x in os.listdir(inpath):
if os.path.isfile(x):
print('f-', x)
elif os.path.isdir(x):
print('d-', x)
elif os.path.islink(x):
print('l-', x)
else:
print('---', x)
new = input("ENTER YOUR INPUT IMAGE DIRECTORY: ")
inpath = os.getcwd() + '\\Scaned image\\' + new
if not os.path.exists(inpath):
print("ENTER CORRECT DIRECTORY...")
return 0
out_arr = [
'Adaptive_Threshold', 'Global_Thresold', 'Otsus_Threshold',
'Local_Binary'
]
entries = os.listdir(inpath)
for i in range(len(out_arr)):
outpath = os.getcwd() + '\\Scaned image\\OUT\\' + out_arr[i]
if os.path.exists(outpath):
shutil.rmtree(outpath)
os.mkdir(outpath)
outpath = os.getcwd() + '\\Scaned image\\OUT\\'
#src_fname, ext = os.path.splitext(x)
k = 0
for entry in entries:
img = np.array([], dtype=int)
img = cv2.imread(os.path.join(inpath, entry))
#img = img[1150:2900,0:img.shape[1]]
print(entry)
Gray_img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
"""Adaptive Thresolding"""
img_in = cv2.medianBlur(Gray_img, 5)
img_out = cv2.adaptiveThreshold(img_in, 255,
cv2.ADAPTIVE_THRESH_MEAN_C,
cv2.THRESH_BINARY, 11, 2)
output = np.concatenate((img_in, img_out), axis=1)
out_string = 'Original + Adaptive 0000' + str(k) + '.tif'
i = 0
cv2.imwrite(os.path.join(outpath, out_arr[i], out_string), output)
"""Global Thresolding"""
b, img_out = cv2.threshold(Gray_img, 127, 255, cv2.THRESH_BINARY)
output = np.hstack((Gray_img, img_out))
out_string = 'Original + Global 0000' + str(k) + '.tif'
i = 1
cv2.imwrite(os.path.join(outpath, out_arr[i], out_string), output)
"""Otsus Thresolding"""
b, img_out = cv2.threshold(Gray_img, 127, 255,
cv2.THRESH_BINARY + cv2.THRESH_OTSU)
output = np.hstack((Gray_img, img_out))
out_string = 'Original + Otsus 0000' + str(k) + '.tif'
i = 2
cv2.imwrite(os.path.join(outpath, out_arr[i], out_string), output)
"""Local Binary Pattern"""
img_out = feature.local_binary_pattern(Gray_img,
8,
1,
method='default')
output = np.hstack((Gray_img, img_out))
out_string = 'Original + LBP 0000' + str(k) + '.tif'
i = 3
cv2.imwrite(os.path.join(outpath, out_arr[i], out_string), output)
k += 1
# cwd = os.getcwd() "USE TO GET THE CURRENT DIRECTORY"
print("VIEW OUTPUT FROM THIS DIRECTORY.... ", outpath)
return 1
import numpy as np
img = cv2.imread('ocr1/img_17.jpg')
imgGrey = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
kernel1 = np.ones((3, 3), np.uint8)
kernel2 = np.ones((3, 3), np.uint8)
kernel = np.zeros((5, 5), np.uint8)
kernel[2, :] = 1
#kernel[:,3]=1
# Można użyć do wykrywania samych literek i cyfr
#edges = cv2.Canny(imgGrey,220,300,apertureSize = 3)
blur = cv2.GaussianBlur(imgGrey, (5, 5), 0)
edges = cv2.adaptiveThreshold(blur, 255, 1, 1, 11, 2)
#can = cv2.erode(can, kernel, iterations=1)
ero = cv2.dilate(edges, kernel, iterations=1)
dil = cv2.erode(ero, kernel, iterations=2)
# Wykrywanie linii
lines = cv2.HoughLinesP(dil,
1,
np.pi / 180,
80,
minLineLength=400,
maxLineGap=20)
# Pozostawienie tylko linii poziomych
lines = list(filter(lambda l: abs(l[0][1] - l[0][3]) < 20, lines))
linesSorted = sorted(lines, key=lambda l: l[0][1])
import cv2
import matplotlib.pyplot as plt
import numpy as np
from tensorflow.keras.models import load_model
img = cv2.imread("11.jpeg")
img_gray = cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)
img_checker = cv2.adaptiveThreshold(img_gray, 255,
cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY_INV, 175, 45)
# img_checker = cv2.adaptiveThreshold(img_gray, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV, 31, 25)
plt.imshow(img_checker)
plt.show()
_, contours, hierarchy = cv2.findContours(img_checker, cv2.RETR_EXTERNAL,
cv2.CHAIN_APPROX_SIMPLE)
rects = [cv2.boundingRect(contour) for contour in contours]
for rect in rects:
if rect[2] * rect[3] < 1000:
continue
print(rect)
cv2.rectangle(img, (rect[0], rect[1]),
(rect[0] + rect[2], rect[1] + rect[3]), (0, 255, 0), 3)
if rect[2] < 50:
margin = 100
else:
margin = 60
roi = img_checker[rect[1] - margin:rect[1] + rect[3] + margin,
rect[0] - margin:rect[0] + rect[2] + margin]
# cv2.imshow("Resulting Image with Rectangular ROIs", img)
sys.path.append('/usr/local/lib/python3.5/dist-packages')
import numpy as np
import cv2
import ocr_mnist
# MNISTの学習データを読む --- (※1)
mnist = ocr_mnist.build_model()
mnist.load_weights('mnist.hdf5')
# 画像の読み込み --- (※2)
im = cv2.imread('numbers100.png')
# 輪郭を抽出 --- (※3)
gray = cv2.cvtColor(im, cv2.COLOR_BGR2GRAY) # グレイスケールに
blur = cv2.GaussianBlur(gray, (5, 5), 0) # ぼかす
thresh = cv2.adaptiveThreshold(blur, 255, 1, 1, 11, 2) # 二値化
cv2.imwrite("numbers100-th.png", thresh)
contours = cv2.findContours(thresh,
cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)[1]
# 抽出した座標を左上から右下へと並び替える --- (※4)
rects = []
im_w = im.shape[1]
for i, cnt in enumerate(contours):
x, y, w, h = cv2.boundingRect(cnt)
if w < 10 or h < 10: continue # 小さすぎるのは飛ばす
if w > im_w / 5: continue # 大きすぎるのも飛ばす
y2 = round(y / 10) * 10 # Y座標を揃える
index = y2 * im_w + x
rects.append((index, x, y, w, h))
rects = sorted(rects, key=lambda x:x[0]) # 並び替え
def preprocess_image(image):
gray_blur = cv2.GaussianBlur(image, (15, 15), 0)
thresh = cv2.adaptiveThreshold(gray_blur, 255,
cv2.ADAPTIVE_THRESH_GAUSSIAN_C,
cv2.THRESH_BINARY_INV, 11, 1)
return thresh
def main():
allContoursWithData = [] # declare empty lists,
validContoursWithData = [] # we will fill these shortly
try:
npaClassifications = np.loadtxt(
"classifications.txt",
np.float32) # read in training classifications
except:
print("error, unable to open classifications.txt, exiting program\n")
os.system("pause")
return
# end try
try:
npaFlattenedImages = np.loadtxt("flattened_images.txt",
np.float32) # read in training images
except:
print("error, unable to open flattened_images.txt, exiting program\n")
os.system("pause")
return
# end try
npaClassifications = npaClassifications.reshape(
(npaClassifications.size,
1)) # reshape numpy array to 1d, necessary to pass to call to train
kNearest = cv2.ml.KNearest_create() # instantiate KNN object
kNearest.train(npaFlattenedImages, cv2.ml.ROW_SAMPLE, npaClassifications)
imgTestingNumbers = cv2.imread(
"img{}.png".format(i)) # read in testing numbers image
if imgTestingNumbers is None: # if image was not read successfully
print("error: image not read from file \n\n"
) # print error message to std out
os.system("pause") # pause so user can see error message
return # and exit function (which exits program)
# end if
imgGray = cv2.cvtColor(imgTestingNumbers,
cv2.COLOR_BGR2GRAY) # get grayscale image
imgBlurred = cv2.GaussianBlur(imgGray, (5, 5), 0) # blur
# filter image from grayscale to black and white
imgThresh = cv2.adaptiveThreshold(
imgBlurred, # input image
255, # make pixels that pass the threshold full white
cv2.
ADAPTIVE_THRESH_GAUSSIAN_C, # use gaussian rather than mean, seems to give better results
cv2.
THRESH_BINARY_INV, # invert so foreground will be white, background will be black
11, # size of a pixel neighborhood used to calculate threshold value
2) # constant subtracted from the mean or weighted mean
imgThreshCopy = imgThresh.copy(
) # make a copy of the thresh image, this in necessary b/c findContours modifies the image
imgContours, npaContours, npaHierarchy = cv2.findContours(
imgThreshCopy, # input image, make sure to use a copy since the function will modify this image in the course of finding contours
cv2.RETR_EXTERNAL, # retrieve the outermost contours only
cv2.CHAIN_APPROX_SIMPLE
) # compress horizontal, vertical, and diagonal segments and leave only their end points
for npaContour in npaContours: # for each contour
contourWithData = ContourWithData(
) # instantiate a contour with data object
contourWithData.npaContour = npaContour # assign contour to contour with data
contourWithData.boundingRect = cv2.boundingRect(
contourWithData.npaContour) # get the bounding rect
contourWithData.calculateRectTopLeftPointAndWidthAndHeight(
) # get bounding rect info
contourWithData.fltArea = cv2.contourArea(
contourWithData.npaContour) # calculate the contour area
allContoursWithData.append(
contourWithData
) # add contour with data object to list of all contours with data
# end for
for contourWithData in allContoursWithData: # for all contours
if contourWithData.checkIfContourIsValid(): # check if valid
validContoursWithData.append(
contourWithData) # if so, append to valid contour list
# end if
# end for
validContoursWithData.sort(key=operator.attrgetter(
"intRectX")) # sort contours from left to right
strFinalString = "" # declare final string, this will have the final number sequence by the end of the program
for contourWithData in validContoursWithData: # for each contour
# draw a green rect around the current char
cv2.rectangle(
imgTestingNumbers, # draw rectangle on original testing image
(contourWithData.intRectX,
contourWithData.intRectY), # upper left corner
(contourWithData.intRectX + contourWithData.intRectWidth,
contourWithData.intRectY +
contourWithData.intRectHeight), # lower right corner
(0, 255, 0), # green
2) # thickness
imgROI = imgThresh[
contourWithData.intRectY:contourWithData.intRectY +
contourWithData.intRectHeight, # crop char out of threshold image
contourWithData.intRectX:contourWithData.intRectX +
contourWithData.intRectWidth]
imgROIResized = cv2.resize(
imgROI, (RESIZED_IMAGE_WIDTH, RESIZED_IMAGE_HEIGHT)
) # resize image, this will be more consistent for recognition and storage
npaROIResized = imgROIResized.reshape(
(1, RESIZED_IMAGE_WIDTH *
RESIZED_IMAGE_HEIGHT)) # flatten image into 1d numpy array
npaROIResized = np.float32(
npaROIResized
) # convert from 1d numpy array of ints to 1d numpy array of floats
retval, npaResults, neigh_resp, dists = kNearest.findNearest(
npaROIResized, k=1) # call KNN function find_nearest
strCurrentChar = str(chr(int(
npaResults[0][0]))) # get character from results
strFinalString = strFinalString + strCurrentChar # append current char to full string
# end for
r = strFinalString
###########################################
iisf = sqlite3.connect("chalan.db")
cur = iisf.cursor()
sql = "select * from vehicle where vehicle_number='" + r + "';"
x = cur.execute(sql)
if x != None:
y = cur.fetchone()
try:
mail = "*****@*****.**"
password = "******"
sub = "E-CHALAN VEHICLE POLLUTION"
person = y[2]
a = y[5]
d = datetime.datetime.today()
date = datetime.datetime.strptime(a, "%Y-%m-%d")
com = d.year - date.year
if (com < 15):
body = "Subject: {}\n Hello {} vehicle number {} model {} producing excesive amount of harmfull gases. \n please submit fine of Rs 1000 to the nearest RTO office or police station. \n Thank You \n RTO office".format(
sub, y[1], y[0], y[3])
c = canvas.Canvas("{}.pdf".format(y[1]))
c.drawString(280, 800, "E-challan")
c.drawString(50, 650,
"Date:{}".format(datetime.datetime.now()))
c.drawString(
50, 630,
"Chalan No. {}".format(random.randint(654789, 987654)))
seal = 'download.jpg'
c.drawImage(seal, 260, 670, width=100, height=100)
c.drawString(50, 610, "Sir,")
c.drawString(
80, 590,
"{} vehicle number {} model {} ".format(y[1], y[0], y[3]))
c.drawString(80, 570,
"producing excesive amount of harmfull gases.")
c.drawString(
80, 550,
"please submit fine of Rs 1000 to the nearest RTO office or police station."
)
c.drawString(50, 500, "Thank You:")
c.drawString(50, 480, "RTO OFFICE")
c.save()
subject = "E-chalan"
message = MIMEMultipart()
message['From'] = mail
message['To'] = person
message['Subject'] = subject
##
message.attach(MIMEText(body, 'plain'))
filename = "{}.pdf".format(y[1])
attachment = open(filename, 'rb')
part = MIMEBase('application', 'octet-stream')
part.set_payload((attachment).read())
encoders.encode_base64(part)
part.add_header('content-Disposition',
'attachment; filename=' + filename)
message.attach(part)
text = message.as_string()
##
##
server = smtplib.SMTP('smtp.gmail.com', 587)
server.ehlo()
server.starttls()
server.login(mail, password)
##
server.sendmail(mail, person, text)
server.quit()
print("Chalan send on number {}".format(r))
else:
body = "Subject: {}\n Hello {} vehicle number {} model {} is cross the limit of 15 years so we cancelling your registration number.".format(
sub, y[1], y[0], y[3])
c = canvas.Canvas("{}.pdf".format(y[1]))
c.drawString(280, 800, "E-challan")
c.drawString(50, 650,
"Date:{}".format(datetime.datetime.now()))
c.drawString(
50, 630,
"Chalan No. {}".format(random.randint(654789, 987654)))
seal = 'download.jpg'
c.drawImage(seal, 260, 670, width=100, height=100)
c.drawString(50, 610, "Sir,")
c.drawString(
80, 590,
"{} vehicle number {} model {} is cross the limit of 15 year "
.format(y[1], y[0], y[3]))
#c.drawString(80,570,"is cross the limit of 15 year ")
c.drawString(80, 570,
"So we are cancelling you vehicle registration.")
c.drawString(50, 530, "Thank You:")
c.drawString(50, 500, "RTO OFFICE")
c.save()
subject = "Vechicle Registration Cancellation"
message = MIMEMultipart()
message['From'] = mail
message['To'] = person
message['Subject'] = subject
message.attach(MIMEText(body, 'plain'))
filename = "{}.pdf".format(y[1])
attachment = open(filename, 'rb')
part = MIMEBase('application', 'octet-stream')
part.set_payload((attachment).read())
encoders.encode_base64(part)
part.add_header('content-Disposition',
'attachment; filename=' + filename)
message.attach(part)
text = message.as_string()
server = smtplib.SMTP('smtp.gmail.com', 587)
server.ehlo()
server.starttls()
server.login(mail, password)
server.sendmail(mail, person, text)
server.quit()
print("{} vehicle registration cancel".format(r))
except:
print("{} VEHICLE NOT REGISTERED".format(r))
#########################3
cv2.imshow("imgTestingNumbers", imgTestingNumbers)
# show input image with green boxes drawn around found digits
cv2.waitKey(2)
#cv2.destroyAllWindows() # remove windows from memory
return