Creating 3 color dithering image
Hello I am trying to convert an image from full color image to 3 colors dithering image to convert this image
to this one
I don't have a clue how to do this, but I assume that I need to first change source image to tri color image (Black - White - Red) then apply dithering on it, so I am not sure how to convert a fully colored image into 3 colors only.
Solution
I found what I was looking for in this post https://learn.adafruit.com/preparing-graphics-for-e-ink-displays/command-line The answer was to use library like ImageMagick instead of opencv. I can do a dithering on one line command
convert input.jpg -dither FloydSteinberg -define dither:diffusion-amount=85% -remap eink-3color.png BMP3:output.bmp
the eink-3color.png is this one
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