I know this isn’t very relevant to programming, but I need to know how a convolution matrix works for a PHP GD function. I’ve searched a lot on Google, but can’t find anything that explains it well.
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I know this isn’t very relevant to programming, but I need to know how a convolution matrix works for a PHP GD function. I’ve searched a lot on Google, but can’t find anything that explains it well.
I went into a load of the theory behind convolution filters here:
How do I gaussian blur an image without using any in-built gaussian functions?