I think something is wrong with pictures. When I try to insert bottom_left image it's object becomes of none type and it is working fine with bulbasaur image

#1

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#2

Hey @Joy-Gupta-2763139277246091, no the images are absolutely correct. Images can ofcourse not be wrong. There must be some error in the sequence in which you execute your code. Please restart the kernel and make sure your image is present at the path you are giving to cv.imread( ) function. Did you try to print img1 ? If yes then what was the output ?