I was inspired by the typewriter’s inability to erase, and subtractive color mixing.
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Now I have a program that generates three layers of stacked ASCII in cyan, magenta, and yellow, to replicate an image.
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It generates very slowly at the moment–every character requires checking against 857,375 patterns to find the best fit. My plan is to use a kd-tree to reduce that to about 20 matches instead.
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I also have to figure out why the images are squished vertically (or stretched horizontally).