Fails on non-square images

[stasoid]

In function read_pixels_as_brainfuck:
image.size[0] - width (number of columns); image.size[1] - height (number of rows)
So instead of

        for r in range(image.size[0]):
            for c in range(image.size[1]):

it should be

        for r in range(image.size[1]):
            for c in range(image.size[0]):

[DylanMeeus]

Thank you. I will take a look at this over the weekend ;-)

[DylanMeeus]

I forgot about this, but made some changes to the interpreter and was reminded of your comment by doing so.

I have updated the code

Thanks for pointing that out!