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Merge pull request #3742 from StevenPuttemans:fix_4151

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Vadim Pisarevsky 2015-03-02 11:30:16 +00:00
commit e28a5803d9
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doc/py_tutorials/py_imgproc/py_contours/py_contours_begin/py_contours_begin.markdown
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@ -30,7 +30,7 @@ import cv2
im = cv2.imread('test.jpg')
imgray = cv2.cvtColor(im,cv2.COLOR_BGR2GRAY)
ret,thresh = cv2.threshold(imgray,127,255,0)
contours, hierarchy = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
im2, contours, hierarchy = cv2.findContours(thresh,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
@endcode
See, there are three arguments in **cv2.findContours()** function, first one is source image, second
is contour retrieval mode, third is contour approximation method. And it outputs the contours and