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comparison python/cvutils.py @ 625:9202628a4130

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saving image when playing video
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Fri, 13 Feb 2015 09:10:29 -0500
parents b5525249eda1
children 977407c9f815
comparison
equal deleted inserted replaced
624:bac66bd536c5 625:9202628a4130
142 frameNum+=1 142 frameNum+=1
143 if text != None: 143 if text != None:
144 cv2.putText(img, text, (10,50), cv2.cv.CV_FONT_HERSHEY_PLAIN, 1, cvRed) 144 cv2.putText(img, text, (10,50), cv2.cv.CV_FONT_HERSHEY_PLAIN, 1, cvRed)
145 cvImshow(windowName, img, rescale) 145 cvImshow(windowName, img, rescale)
146 key = cv2.waitKey(wait) 146 key = cv2.waitKey(wait)
147 if saveKey(key):
148 cv2.imwrite('image-{}.png'.format(frameNum), img)
147 cv2.destroyAllWindows() 149 cv2.destroyAllWindows()
148 else: 150 else:
149 print('Video capture for {} failed'.format(filename)) 151 print('Video capture for {} failed'.format(filename))
150 152
151 def getImagesFromVideo(videoFilename, firstFrameNum = 0, nFrames = 1, saveImage = False, outputPrefix = 'image'): 153 def getImagesFromVideo(videoFilename, firstFrameNum = 0, nFrames = 1, saveImage = False, outputPrefix = 'image'):