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In general, image processing is any form of signal processing for which the input is an image, such as a photograph or video frame.

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Understanding MATLAB/Mathematica's bilinear interpolation

A good answer is posted at https://mathematica.stackexchange.com/questions/42825/understanding-bilinear-imageresize/42842?noredirect=1#42842, the Mathematica StackExchange site.
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Understanding MATLAB/Mathematica's bilinear interpolation

I am trying to get a working understanding of how to resize images using bilinear and bicubic transformations. I coded a resizing function based on things I've read here and Wikipedia, etc., but I get …
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