How to crop or remove white background from an image

Question

I am trying to compare images using OpenCV and Python.

Consider these images:

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Both feature an identical pair of shoes, se

Answer 1

I found this on github.

https://imagemagick.org/script/download.php

import pgmagick

def remove_background(image, background=None):
    """Returns a copy of `image` that only contains the parts that is distinct
       from the background. If background is None, returns parts that are
       distinct from white."""
    if background is None:
        background = pgmagick.Image(image.size(), 'white')
    elif isinstance(background, pgmagick.Image):
        blob = pgmagick.Blob()
        background.write(blob)
        background = pgmagick.Image(blob, image.size())
    else:
        background = pgmagick.Image(image.size(), background)
    background.composite(image, 0, 0, pgmagick.CompositeOperator.DifferenceCompositeOp)
    background.threshold(25)
    blob = pgmagick.Blob()
    image.write(blob)
    image = pgmagick.Image(blob, image.size())
    image.composite(background, 0, 0, pgmagick.CompositeOperator.CopyOpacityCompositeOp)
    return image