Is it possible to make a hue color scale which can then be converted to RGB?

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Alexandar 2022-7-22

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https://ww2.mathworks.cn/matlabcentral/answers/1765760-is-it-possible-to-make-a-hue-color-scale-which-can-then-be-converted-to-rgb

编辑： Kevin Holly 2022-7-22

I have a brain atlas image that is set with hue color values between 0-1 that are then converted to RGB. Different regions of the brain have different hue values based on the inputs of the areas being selected. What I now want to do is creat a hue color scale that goes from cold colors like dark blue to hot read, sort of like a heat map. Would you know how I could do this?

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Alexandar 2022-7-22

Or is there a way I can manipulate the hue color wheel to be displayed as a heat map? I tried doing that but it includes colors like pink, purple, or green which are colors that I don’t want. I just want colors that go from “hot to cold” if that makes sense?

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