Run time Error:Not Enough value to unpack

[mkjkit]

Traceback (most recent call last):
File "haze_removal.py", line 99, in
hr.open_image(sys.argv[1])
File "haze_removal.py", line 17, in open_image
self.rows, self.cols, _ = self.src.shape
ValueError: not enough values to unpack (expected 3, got 2)