ValueError: too many values to unpack in cv2.findContours

For whatever reason, cv2.findContours on line 211 returns three arguments instead of the expected 2. From playing with it, I found that by eliminating the first value would solve the problem. I am not knowledgeable about cv2 so if this is something obvious someone please say so. (MacOS, cv2 ‘3.2.0’). Here is the fix that worked for me. result = cv2.findContours(edges.copy(), cv2.RETR_TREE, cv2.CHAIN_APPROX_NONE) contours, hierarchy = result if len(result) == 2 else result[1:3]

[ossiach]

Adding a third value in front of the other two also solved the problem for me. For example: _, contours, hierarchy = cv2.findContours(edges.copy(), cv2.RETR_TREE, cv2.CHAIN_APPROX_NONE)

Apparently findContours got changed some time ago: https://stackoverflow.com/questions/25504964/opencv-python-valueerror-too-many-values-to-unpack

[bharath5673]

EASY FIX 😉

( _ , cnts , _ ) = cv2.findContours(threshFrame.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE) ValueError: not enough values to unpack (expected 3, got 2)

try this

( cnts , _ )

python is right. you cannot unpack 3 values from the turple and place them in a turple of two ###

happy coding 😉