Mercurial Hosting > traffic-intelligence
diff python/cvutils.py @ 478:d337bffd7283
Display of points in compute homography and step option to replay videos
A bug seems to remain with respect to trajectory bounds, to check
| author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
|---|---|
| date | Thu, 27 Mar 2014 11:40:28 -0400 |
| parents | 59903d14d244 |
| children | f6415f012640 |
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--- a/python/cvutils.py Tue Mar 25 19:43:47 2014 -0400 +++ b/python/cvutils.py Thu Mar 27 11:40:28 2014 -0400 @@ -202,7 +202,7 @@ return imgcrop, yCropMin, yCropMax, xCropMin, xCropMax - def displayTrajectories(videoFilename, objects, boundingBoxes = {}, homography = None, firstFrameNum = 0, lastFrameNumArg = None, printFrames = True, rescale = 1.): + def displayTrajectories(videoFilename, objects, boundingBoxes = {}, homography = None, firstFrameNum = 0, lastFrameNumArg = None, printFrames = True, rescale = 1., nFramesStep = 1): '''Displays the objects overlaid frame by frame over the video ''' from moving import userTypeNames @@ -246,7 +246,9 @@ key = cv2.waitKey() if saveKey(key): cv2.imwrite('image.png', img) - frameNum += 1 + frameNum += nFramesStep + if nFramesStep > 1: + capture.set(cv2.cv.CV_CAP_PROP_POS_FRAMES, frameNum) cv2.destroyAllWindows() else: print 'Cannot load file ' + videoFilename