How can I stretch an image non-uniformly?
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I would like to take an image, and stretch it non-uniformly such that the further from the center of the image the less stretched it is. So the areas near the edges would get condensed while the areas far from the areas would get inflated. How could I go about generating a suitable displacement field to use? Please let me know if creating a displacement field to use would be a good approach and/or how I might do this. Any help is much appreciated, thanks! :)