Hi. Anyone know a script or expression to remove hot pixel noise from images or 3d renders?
I tried some crude 3x3 matrix tricks to enhance the pixels and tried to "pull" the pixels out and subtract from the main image. Then i used the result as a mask for a median filter set at 1. Looking at the RGB channels, the hot pixel is the same value on all 3 channels while the neighbour pixels are different per channel. I'm hoping for a more elegant way to detect hot pixel using an expression. Dave
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