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Using with OpenCV v4.2 #1

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tomoyk opened this issue Apr 14, 2020 · 0 comments
Open

Using with OpenCV v4.2 #1

tomoyk opened this issue Apr 14, 2020 · 0 comments

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@tomoyk
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tomoyk commented Apr 14, 2020

On OpenCV 4.0 or later version, findContours() return 2 values.

https://docs.opencv.org/4.3.0/d3/dc0/group__imgproc__shape.html#gadf1ad6a0b82947fa1fe3c3d497f260e0

I fixed codes below.

# BEFORE
image, contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

# AFTER
contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
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