Created
October 17, 2019 15:13
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Find contours in an image
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| # convert image to grayscale | |
| imgray = cv2.cvtColor(img, cv.COLOR_BGR2GRAY) | |
| # apply threshold | |
| thresh = cv2.threshold(imgray, 127, 255, 0)[1] | |
| # find contours | |
| contours, hierarchy = cv.findContours(thresh, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE) | |
| # draw contours on image | |
| cv2.drawContours(img, contours, -1, (0, 255, 0), 3) |
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