Assertion failure : size.width>0 && size.height>0 in function imshow

Question

i am using opencv2 and python on raspberry pi. and i am new with python and opencv. i tried to read a jpeg image and display image it shows the following error:

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Answer 1

One of the reasons, this error is caused is when there is no file at the path specified. So, a good practice will be to verify the path like this ( If you are on a linux based machine ):

ls 

You will get an error if the path is incorrect or the file is missing.