Colour Perception and the Mysterious Fourth Cone Pigment

I recently wrote a little post about a colour recognition plug-in I wrote for OpenCFU. To better tell the difference between colours, I transformed the RGB values in the image into their corresponding L*a*b* so that I could use a reasonable measure of colour difference. With that metric, this image shows the colours in the … Continue reading Colour Perception and the Mysterious Fourth Cone Pigment

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