Reverse-Colorblindness Test
Posted on July 2nd, 2006
This page features an interesting switch on the usual colorblindness tests - these tests are only correctly visible to people who are colorblind. It taps into the fact that colorblind people can detect subtle changes in intensity (contrast?) much better than us normies. Of course, they do sacrifice the ability to see certain hues. I’m not sure of the scientific integrity of this test - but the general theory seems sound. I guess you’d need to validate the test images by having lots of colorblind folks confirm they can see the ‘hidden’ images. Maybe I should make my own anti-colorblind test and it always works because there simply is no hidden image at all! *evil grin*
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