Legacy ImageMagick Discussions Archive

I'm looking for a way to search for areas of x number of pixels that are black and are complelety surrounded with white pixels. If I find less than x number of black pixels surrounded with white pixels all round I wish to erease it. I wish to set the maximum number of black pixels touching each ...

Hi, I have old schematics scanned as bitmaps and they have a lot of "pepper" due to copier/scanner dithering of partly smudged originals. What I would like to try, is to find and replace limited size contiguous areas, and replace them with surrounding colour. If the "pepper particle" is attached to ...