def onIdle(self, event):
"""
Event to grab and display a frame from the camera. (internal use).
"""
if self.cap == None: #Should be cvCameraCapture instance.
#unbind the idle instance, change to click.
highgui.cvReleaseCapture(self.cap) #release the old instance and
self.cap = highgui.cvCreateCameraCapture(
self.camera) #try new one.
self.displayError(self.errorBitmap, (128, 128))
raise CameraError('Unable to open camera, retrying....')
event.Skip()
try:
img = highgui.cvQueryFrame(self.cap)
except cv2.error as e:
raise CameraError('Error when querying for frame: {0}'.format(e))
self._error = 0 #worked successfully
img = opencv.cvGetMat(img)
cv.cvCvtColor(img, img, cv.CV_BGR2RGB)
if conf.as_bool(conf.config['webcam']['cropBars']):
#Draw cropping region
cv.cvRectangle(img, (80, -1), (560, 480), (205.0, 0.0, 0.0, 0.0),
2)
self.displayImage(img)
event.RequestMore()
def snapshot():
cam = highgui.cvCreateCameraCapture(1)
img = highgui.cvQueryFrame(cam)
pilImage = opencv.adaptors.Ipl2PIL(img)
highgui.cvReleaseCapture(cam)
return pilImage
def capture_webcam():
"""
Grab a frame from the first detected webcam using OpenCV.
"""
import opencv
from opencv import highgui
camera = highgui.cvCreateCameraCapture(0)
cv_img = highgui.cvQueryFrame(camera)
img = opencv.adaptors.Ipl2PIL(cv_img)
highgui.cvReleaseCapture(camera)
return img
def recognize_face():
try:
argsnum=len(sys.argv)
print "args:",argsnum
#if(argsnum<5):
# print "usage:python pyfaces.py imgname dirname numofeigenfaces threshold "
# sys.exit(2)
#imgname=sys.argv[1]
#dirname=sys.argv[2]
#egfaces=int(sys.argv[3])
#thrshld=float(sys.argv[4])
capture=hg.cvCreateCameraCapture(0)
hg.cvNamedWindow("Snapshot")
i=0
#time.sleep(1)
myframe=0
imgname='sample.png'
dirname='images'
egfaces=5
thrshld=0.3
#frame=0
while 1:
frame=hg.cvQueryFrame(capture)
#print type(frame)
hg.cvShowImage("Snapshot",frame)
key = hg.cvWaitKey(5)
if key=='c' or key=='C':
hg.cvDestroyWindow("Snapshot")
hg.cvSaveImage(imgname,frame)
global_frame=frame
break
#print frame
#sys.exit(0)
pyf=PyFaces(imgname,dirname,egfaces,thrshld,frame)
#if pyfaces returns false then save this image into images folder
hg.cvReleaseCapture(capture)
return pyf.getFileName()
except Exception,detail:
print detail
print "usage:python pyfaces.py imgname dirname numofeigenfaces threshold "
def do_dream():
colour_sensed = Color20(b,PORT_3).get_color()
print "LEGO Colour: "+colours[colour_sensed]
im = get_image()
dream = get_dream(im, colour_sensed)
assert 0 <= dream < len(pbm_images)
print "writing image %s to peggy" % pbm_images[dream]
write_frame(pbm_lines(IMG_DIR + pbm_images[dream]))
im.save('dream' + time.strftime('%H%M%S') + '.jpg', 'JPEG')
print "saving photo"
highgui.cvReleaseCapture(camera)#reset camera
global camera
camera = highgui.cvCreateCameraCapture(1)
time.sleep(DISPLAY_TIME)
write_frame()
def opencvSnap(dev,size):
"""
An example use of the "camera" taking a single picture frame using opencv's cvMat as the return method.
"""
# First lets take a picture using opencv, and display it using opencv...
cvWin = hg.cvNamedWindow( "Opencv Rendering and Capture", 0 )
print("Opening device %s, with video size (%s,%s)" % (dev,size[0],size[1]))
# creates the camera of the specified size and in RGB colorspace
cam = Camera(dev, size, "RGB")
a = cam.get_image()
hg.cvShowImage ('Opencv Rendering and Capture', a)
# close the capture stream to avoid problems later, should see the camera turn off
hg.cvReleaseCapture(cam.capture)
del cam
# Wait for any key then clean up
print("Press any key to continue")
k = hg.cvWaitKey()
hg.cvDestroyWindow("Opencv Rendering and Capture")
def opencvSnap(dev, size):
"""
An example use of the "camera" taking a single picture frame using opencv's cvMat as the return method.
"""
# First lets take a picture using opencv, and display it using opencv...
cvWin = hg.cvNamedWindow("Opencv Rendering and Capture", 0)
print("Opening device %s, with video size (%s,%s)" %
(dev, size[0], size[1]))
# creates the camera of the specified size and in RGB colorspace
cam = Camera(dev, size, "RGB")
a = cam.get_image()
hg.cvShowImage('Opencv Rendering and Capture', a)
# close the capture stream to avoid problems later, should see the camera turn off
hg.cvReleaseCapture(cam.capture)
del cam
# Wait for any key then clean up
print("Press any key to continue")
k = hg.cvWaitKey()
hg.cvDestroyWindow("Opencv Rendering and Capture")
def onIdle(self, event):
"""
Event to grab and display a frame from the camera. (internal use).
"""
if self.cap == None: #Should be cvCameraCapture instance.
#unbind the idle instance, change to click.
highgui.cvReleaseCapture(self.cap) #release the old instance and
self.cap = highgui.cvCreateCameraCapture(self.camera) #try new one.
self.displayError(self.errorBitmap, (128, 128))
raise CameraError('Unable to open camera, retrying....')
event.Skip()
try:
img = highgui.cvQueryFrame(self.cap)
except cv2.error as e:
raise CameraError('Error when querying for frame: {0}'.format(e))
self._error = 0 #worked successfully
img = opencv.cvGetMat(img)
cv.cvCvtColor(img, img, cv.CV_BGR2RGB)
if conf.as_bool(conf.config['webcam']['cropBars']):
#Draw cropping region
cv.cvRectangle(img, (80, -1), (560, 480), (205.0, 0.0, 0.0, 0.0), 2)
self.displayImage(img)
event.RequestMore()
def crear_imagen(self, nombre_imagen):
captura = cvCreateCameraCapture(0)
imagen = cvQueryFrame(captura)
cvSaveImage("imagenes/%s.png" %nombre_imagen, imagen)
cvReleaseCapture(captura)
if len(argv) > 2:
writeVideo = True
outputVideoPath = argv[1]
else:
writeVideo = False
frameWidth = 640
frameHeight = 480
fps = 15.0
if writeVideo:
writer = cvCreateVideoWriter(argv[1], CV_FOURCC('M','J','P','G'), fps, cvSize(640,480))
cvSetCaptureProperty(CAM, CV_CAP_PROP_FRAME_WIDTH, frameWidth)
cvSetCaptureProperty(CAM, CV_CAP_PROP_FRAME_HEIGHT, frameHeight)
cvSetCaptureProperty(CAM, CV_CAP_PROP_FPS, fps)
getFilter(frameWidth, frameHeight)
background = getBackground(frameWidth, frameHeight)
startChroma(background, frameWidth, frameHeight)
cvReleaseCapture(CAM)
if writeVideo:
cvReleaseVideoWriter(writer)
def _destr_cap(self):
hg.cvReleaseCapture(self.cap)
def __del__(self):
highgui.cvReleaseCapture(self.camera)
print('Releasing WebCam ...')
#img = highgui.cvRetrieveFrame (capture)
#cvGrabFrame(capture); // capture a frame
#img=cvRetrieveFrame(capture); // retrieve the captured frame
#cvWriteFrame(writer,img); // add the frame to the file
highgui.cvShowImage ('Camera', frame)
# handle events
#k = highgui.cvWaitKey ()
#print
for event in pygame.event.get():
if event.type == pygame.QUIT:
highgui.cvReleaseVideoWriter (writer)
highgui.cvDestroyAllWindows()
highgui.cvReleaseCapture (capture)
pygame.quit()
#sys.exit()
break
keyinput = pygame.key.get_pressed()
#print "key pressed: ", keyinput
if keyinput[K_SPACE]:
#frame = highgui.cvQueryFrame (capture)
#frame = highgui.cvGrabFrame (capture)
img = highgui.cvQueryFrame (capture)
img = highgui.cvRetrieveFrame (capture)
if frame is None:
# no image captured... end the processing
break
def stop_capture(self):
if self.capture:
highgui.cvReleaseCapture(self.capture)
self.capture = None
def __del__(self):
highgui.cvReleaseCapture(self.camera)
print('Releasing WebCam ...')
#log# Automatic Logger file. *** THIS MUST BE THE FIRST LINE ***
#log# DO NOT CHANGE THIS LINE OR THE TWO BELOW
#log# opts = Struct({'__allownew': True, 'logfile': 'ipython-logs/opencv-camlist.py'})
#log# args = []
#log# It is safe to make manual edits below here.
#log#-----------------------------------------------------------------------
import opencv
import opencv.cv as cv
import opencv.highgui as hg
import conversionUtils
# on the olpc this takes ages!
cap = hg.cvCreateCameraCapture(0)
cap
#?cap
q = hg.cvQueryFrame(cap)
del cap
#cam still on
hg.cvReleaseCapture(2)
hg.cvReleaseCapture(cap)
#bugger
quit()
def close(self):
"""
Close a capture device and stops writing frames to the screen.
"""
highgui.cvReleaseCapture(self.cap)
self.Unbind(wx.EVT_IDLE)
def stop(self):
return hg.cvReleaseCapture(self.capture)
def main(args):
global capture
global hmax, hmin
highgui.cvNamedWindow('Camera', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvNamedWindow('Hue', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvNamedWindow('Satuation', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvNamedWindow('Value', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvNamedWindow('Laser', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvMoveWindow('Camera', 0, 10)
highgui.cvMoveWindow('Hue', 0, 350)
highgui.cvMoveWindow('Satuation', 360, 10)
highgui.cvMoveWindow('Value', 360, 350)
highgui.cvMoveWindow('Laser', 700, 40)
highgui.cvCreateTrackbar("Brightness Trackbar", "Camera", 0, 255,
change_brightness)
highgui.cvCreateTrackbar("hmin Trackbar", "Hue", hmin, 180, change_hmin)
highgui.cvCreateTrackbar("hmax Trackbar", "Hue", hmax, 180, change_hmax)
highgui.cvCreateTrackbar("smin Trackbar", "Satuation", smin, 255,
change_smin)
highgui.cvCreateTrackbar("smax Trackbar", "Satuation", smax, 255,
change_smax)
highgui.cvCreateTrackbar("vmin Trackbar", "Value", vmin, 255, change_vmin)
highgui.cvCreateTrackbar("vmax Trackbar", "Value", vmax, 255, change_vmax)
print "grabbing camera"
capture = highgui.cvCreateCameraCapture(0)
print "found camera"
highgui.cvSetCaptureProperty(capture, highgui.CV_CAP_PROP_FRAME_WIDTH, 320)
highgui.cvSetCaptureProperty(capture, highgui.CV_CAP_PROP_FRAME_HEIGHT,
240)
frame = highgui.cvQueryFrame(capture)
frameSize = cv.cvGetSize(frame)
hsv = cv.cvCreateImage(frameSize, 8, 3)
mask = cv.cvCreateImage(frameSize, 8, 1)
hue = cv.cvCreateImage(frameSize, 8, 1)
satuation = cv.cvCreateImage(frameSize, 8, 1)
value = cv.cvCreateImage(frameSize, 8, 1)
laser = cv.cvCreateImage(frameSize, 8, 1)
while 1:
frame = highgui.cvQueryFrame(capture)
cv.cvCvtColor(frame, hsv, cv.CV_BGR2HSV)
#cv.cvInRangeS(hsv,hsv_min,hsv_max,mask)
cv.cvSplit(hsv, hue, satuation, value, None)
cv.cvInRangeS(hue, hmin, hmax, hue)
cv.cvInRangeS(satuation, smin, smax, satuation)
cv.cvInRangeS(value, vmin, vmax, value)
#cv.cvInRangeS(hue,0,180,hue)
cv.cvAnd(hue, value, laser)
#cv.cvAnd(laser, value, laser)
cenX, cenY = averageWhitePoints(laser)
#print cenX,cenY
draw_target(frame, cenX, cenY)
#draw_target(frame,200,1)
highgui.cvShowImage('Camera', frame)
highgui.cvShowImage('Hue', hue)
highgui.cvShowImage('Satuation', satuation)
highgui.cvShowImage('Value', value)
highgui.cvShowImage('Laser', laser)
k = highgui.cvWaitKey(10)
if k == " ":
highgui.cvDestroyAllWindows()
highgui.cvReleaseCapture(capture)
sys.exit()
def close(self):
"""
Close a capture device and stops writing frames to the screen.
"""
highgui.cvReleaseCapture(self.cap)
self.Unbind(wx.EVT_IDLE)
def stop(self):
return hg.cvReleaseCapture(self.capture)
return True
def list_cameras():
#return [0] # Just use this line if errors occur
cams = []
for i in range(3):
try:
capture = hg.cvCreateCameraCapture(
i) # Must be a better way of doing this...
if capture is not None:
cams.append(i)
except Exception, e:
pass
finally:
hg.cvReleaseCapture(capture)
return cams
def init():
"""
Work out at this point what we will use...
"""
pass
def opencvSnap(dev, size):
"""
An example use of the "camera" taking a single picture frame using opencv's cvMat as the return method.
"""
# First lets take a picture using opencv, and display it using opencv...
def main(args):
global capture
global hmax, hmin
highgui.cvNamedWindow('Camera', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvNamedWindow('Hue', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvNamedWindow('Satuation', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvNamedWindow('Value', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvNamedWindow('Laser', highgui.CV_WINDOW_AUTOSIZE)
highgui.cvMoveWindow('Camera', 0, 10)
highgui.cvMoveWindow('Hue', 0, 350)
highgui.cvMoveWindow('Satuation', 360, 10)
highgui.cvMoveWindow('Value', 360, 350)
highgui.cvMoveWindow('Laser', 700, 40)
highgui.cvCreateTrackbar("Brightness Trackbar","Camera",0,255, change_brightness);
highgui.cvCreateTrackbar("hmin Trackbar","Hue",hmin,180, change_hmin);
highgui.cvCreateTrackbar("hmax Trackbar","Hue",hmax,180, change_hmax);
highgui.cvCreateTrackbar("smin Trackbar","Satuation",smin,255, change_smin);
highgui.cvCreateTrackbar("smax Trackbar","Satuation",smax,255, change_smax);
highgui.cvCreateTrackbar("vmin Trackbar","Value",vmin,255, change_vmin);
highgui.cvCreateTrackbar("vmax Trackbar","Value",vmax,255, change_vmax);
print "grabbing camera"
capture = highgui.cvCreateCameraCapture(0)
print "found camera"
highgui.cvSetCaptureProperty(capture,highgui.CV_CAP_PROP_FRAME_WIDTH, 320)
highgui.cvSetCaptureProperty(capture,highgui.CV_CAP_PROP_FRAME_HEIGHT, 240)
frame = highgui.cvQueryFrame(capture)
frameSize = cv.cvGetSize(frame)
hsv = cv.cvCreateImage(frameSize,8,3)
mask = cv.cvCreateImage(frameSize,8,1)
hue = cv.cvCreateImage(frameSize,8,1)
satuation = cv.cvCreateImage(frameSize,8,1)
value = cv.cvCreateImage(frameSize,8,1)
laser = cv.cvCreateImage(frameSize,8,1)
while 1:
frame = highgui.cvQueryFrame(capture)
cv.cvCvtColor(frame, hsv, cv.CV_BGR2HSV)
#cv.cvInRangeS(hsv,hsv_min,hsv_max,mask)
cv.cvSplit(hsv,hue,satuation,value,None)
cv.cvInRangeS(hue,hmin,hmax,hue)
cv.cvInRangeS(satuation,smin,smax,satuation)
cv.cvInRangeS(value,vmin,vmax,value)
#cv.cvInRangeS(hue,0,180,hue)
cv.cvAnd(hue, value, laser)
#cv.cvAnd(laser, value, laser)
cenX,cenY = averageWhitePoints(laser)
#print cenX,cenY
draw_target(frame,cenX,cenY)
#draw_target(frame,200,1)
highgui.cvShowImage('Camera',frame)
highgui.cvShowImage('Hue',hue)
highgui.cvShowImage('Satuation',satuation)
highgui.cvShowImage('Value',value)
highgui.cvShowImage('Laser',laser)
k = highgui.cvWaitKey(10)
if k == " ":
highgui.cvDestroyAllWindows()
highgui.cvReleaseCapture (capture)
sys.exit()
cv.cvCalcBackProject(hue, backproject, obj_hist)
cv.cvAnd(backproject, mask, backproject)
#niter, track_comp, track_box =
cv.cvCamShift(
backproject, track_window,
cv.cvTermCriteria(cv.CV_TERMCRIT_EPS | cv.CV_TERMCRIT_ITER, 10,
1), track_comp, track_box)
track_window = track_comp.rect
#if backproject_mode:
# cvCvtColor( backproject, image, CV_GRAY2BGR )
if not frame.origin:
track_box.angle = -track_box.angle
cv.cvEllipseBox(frame, track_box, cv.CV_RGB(255, 0, 0), 3,
cv.CV_AA, 0)
# we can now display the images
highgui.cvShowImage('Camera', frame)
highgui.cvShowImage('Histogram', histimg)
# handle events
k = highgui.cvWaitKey(10)
if k == '\x1b':
# user has press the ESC key, so exit
break
highgui.cvReleaseCapture(capture)
def query_image(self):
return True
def list_cameras():
#return [0] # Just use this line if errors occur
cams = []
for i in range(3):
try:
capture = hg.cvCreateCameraCapture( i ) # Must be a better way of doing this...
if capture is not None:
cams.append(i)
except Exception, e:
pass
finally:
hg.cvReleaseCapture(capture)
return cams
def init():
"""
Work out at this point what we will use...
"""
pass
def opencvSnap(dev,size):
"""
An example use of the "camera" taking a single picture frame using opencv's cvMat as the return method.
"""
# First lets take a picture using opencv, and display it using opencv...
cvWin = hg.cvNamedWindow( "Opencv Rendering and Capture", 0 )
def cleanup(camera): highgui.cvReleaseCapture(camera)
# KLUDGE : convert back to RGB for display
im_mod=im_mod.convert('RGB')
# insert modified image in stream
pg_img = pygame.image.frombuffer(im_mod.tostring(), im_mod.size, im_mod.mode)
screen.blit(pg_img, (0,0))
pygame.display.flip()
pygame.time.delay(int(1000 * 1.0/fps))
i+=1
print "current frame rate = %2.2f fps"%(i/(time.time()-starttime))
# cleaning
pygame.quit()
highgui.cvReleaseCapture(camera)
# Webcam properties
# # name
# 0 CV_CAP_PROP_POS_MSEC
# 1 CV_CAP_PROP_POS_FRAMES
# 2 CV_CAP_PROP_POS_AVI_RATIO
# 3 CV_CAP_PROP_FRAME_WIDTH
# 4 CV_CAP_PROP_FRAME_HEIGHT
# 5 CV_CAP_PROP_FPS
# 6 CV_CAP_PROP_FOURCC
# 7 CV_CAP_PROP_FRAME_COUNT
# 8 CV_CAP_PROP_FORMAT
