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A comment on Tetrachromatic Vision. Parent comment

Re:Tetrachromatic Vision by glkindlmann on Tuesday June 17, 2025 @06:23PM (#44304622)
This is so cool. For your figures, how did you decide the RGB colors of the 4D colorspace? Or did you convince ACM to print your paper with special inks? :)
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Re:Tetrachromatic Vision by eesmith on Wednesday June 18, 2025 @01:07AM (#44306823)
Definitely not the latter as the paper mentions "The digits are faintly visible in this photograph, because the camera’s color response differs from a human’s."
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