Method of Image Brightness Conversion to Help People With Achromatopsia in Visual Perception of Information

The article considers such a rare and severe anomaly of color vision as achromatopsia, and analyzes existing methods designed to help achromatopes in the correct perception of visual information. The developed method of image brightness transformation is presented, aimed at helping people with complete achromatopsia in distinguishing similar colors in their perception, where the similarity is determined according to the color discrimination threshold indicator. In addition, this method takes into account the features of color perception of achromatopes by providing the ability to use a personalized brightness transformation coefficient. As a result of checking the method for correctness of operation using the simulation of achromatopic vision, an increase in the colorimetric deviation between colors previously indistinguishable by achromatopes was noted and, accordingly, the ability to distinguish such colors from each other appeared. The loss of contrast between the original color image and the recolorized grayscale image is reduced.