ImageFileFilter

ImageFileFilter[f, inputfile, r, outputfile] applies the function f to the range r neighborhood of each pixel in each channel of the image stored in inputfile and stores the result in outputfile.

Examples

ImageFileFilter[Mean, "input.png", 2, "output.png"]

ImageFileFilter[Max, "image.tiff", 3, "filtered.tiff"]

Please visit the official Wolfram Language Reference for more details.