object-detection-tracking-opencv-python :Not Enough Values to Unpack

[vismodo]

Hey There, Mark!

I executed your code for object detection a couple minutes ago and I found an error regarding line 76.

bluetin/object-detection-tracking-opencv-python/opencv-webcam-object-detection.py

Line 76 in b749e76

im2, contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

The problem is arguments given, since it says that the values given are not enough to unpack. Python says that there are 3 values needed, but only two were specified. Here is the callback:

Traceback (most recent call last):
  File "path\to\python\file.py", line 76, in <module>
    im2, contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
ValueError: not enough values to unpack (expected 3, got 2)

Hope you can fix it! Good luck in advance!