Hello, is there a tool/command/script anywhere that can overwrite with a single color (or make transparent) every pixel to the left, above, right, and below a certain other color?
e.g., if one draws a loop of black, tell the program black is the border, the result would be only what is within the loop? TIA -- underground experts united http://user.it.uu.se/~embe8573 https://dataswamp.org/~incal