Image processing nodes implemented in substance designer they can be used in substance painter as well if you export the sbsar. Feel free to use them in your projects or learn something from them in any way. Since those nodes are based on kernel processing they are quite limited in their usage, due to missing loops in designer. So some nodes are faked like the blur nodes by stacking the nodes with different pixel sizes for the kernel

Contains 12 nodes:

Box blur 3x3 Gaussian Blur 3x3 Gaussian Blur 5x5 Emboss Highpass Lowpass Median Noise Removal 3x3 Noise Removal 5x5 Sharpen Unsharpen Masking AA