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Added small fix when circles are not detected

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I noticed that I missed the fact that `cimg` is used in the second `imshow()` call. Changed the scope of the second function call to be within the if-statement. Otherwise in cases where have not been detected the second `imshow()` will attempt to use `cimg` which will be empty leading to an error.
This commit is contained in:
Aleksandar Atanasov 2016-06-12 12:54:16 +02:00 committed by GitHub
parent 25e2e8aa3c
commit c5bbc0353c
1 changed files with 2 additions and 1 deletions
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samples/python/houghcircles.py
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@ -35,7 +35,8 @@ if __name__ == '__main__':
for i in range(b): for i in range(b):
cv2.circle(cimg, (circles[0][i][0], circles[0][i][1]), circles[0][i][2], (0, 0, 255), 3, cv2.LINE_AA) cv2.circle(cimg, (circles[0][i][0], circles[0][i][1]), circles[0][i][2], (0, 0, 255), 3, cv2.LINE_AA)
cv2.circle(cimg, (circles[0][i][0], circles[0][i][1]), 2, (0, 255, 0), 3, cv2.LINE_AA) # draw center of circle cv2.circle(cimg, (circles[0][i][0], circles[0][i][1]), 2, (0, 255, 0), 3, cv2.LINE_AA) # draw center of circle
cv2.imshow("detected circles", cimg)
cv2.imshow("source", src) cv2.imshow("source", src)
cv2.imshow("detected circles", cimg)
cv2.waitKey(0) cv2.waitKey(0)