How it works
Improving images for colour-blind people is an old problem. Accessibility guidelines help, but are limited to designed content, such as maps, signs, websites, brochures, interfaces, etc. Unfortunately, guidelines do nothing for real-world content, such as images or videos.
A classic technique to overcome this problem is daltonization, which works by substituting colours that are invisible to colour-blind observers with other colours, without considering the overall appearance of pictures. In our research, we found that existing solutions, despite increasing visibility, generate images that are strongly disliked by colour-blind and non colour-blind observers.
Clearly, this sort of technique isn't the answer to this difficult problem.
Eyeteq technology is different. We invested a lot of time and effort in conducting user preference studies, to ensure the delivery of beautiful-looking images and video.
Eyeteq gently modifies colours in such a way that colour-blind observers enjoy both improved visibility as well as the overall appearance. With careful design using mathematical perception models, we are able to remap colours to maximise definition for colour-blind people, at the same time as minimising the strength of the effect for non-colour-blind people. In mathematics we call this a perceptually-weighted regularised joint optimisation methodology operating on local scale.
So while people with colour blindness enjoy enhanced details, non-colour-blind people don't mind or at times prefer the resulting images.