Brightness-adjusted Daltonized Image filter

This filter adjusts the brightness of the colors in the image so that different hues that are easily confused by colorblind people are more easily distinguished because they are set to a different brightness. The algorithm is related to the one described here. The advantage of this filter is that it is a "one-size-fits-all" solution: colors of different hues within the image can mostly be distinguished by people with various different kinds of colorblindness (including monochromacy), as well as by people with normal color vision. So in theory you only need one image to cater to everybody. The downside is that the brightness of the colors may be adjusted to a point where they appear un-natural.

Original Image:



Brightness-adjusted Daltonized Image filter applied:



Simulate Protanopia (Red Blindness) filter applied to original image:



Simulate Protanopia (Red Blindness) filter applied to Brightness-adjusted Daltonized Image:





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