• vrighter@discuss.tchncs.de
    18·
    1 year ago

    you want to convert the image to grayscale properly (using luminance, not the mean of the rgb colors), then you can palettize it using a dithering algorithm like floyd-steinberg, with a palette containing only the colors black and white.

    • JaromilOPA
      11·
      1 year ago

      I’m looking for a source code in C that does that, to include it in frei0r, before I have to go and write it myself…

      • vrighter@discuss.tchncs.de
        1·
        1 year ago

        I told you what to look for. It’s a simple algorithm. Maybe try looking at the “implementation” section on the wikipedia page…