Many sighted animals use multiple spectrally distinct sets of photoreceptors for vision. The classical explanation for this arrangement is that any one photoreceptor type supports greyscale vision, ...

The most common types of color blindness, or color vision deficiency, are genetic. However, other types may develop due to injuries, eye diseases, health problems, and side effects of treatment.

Scientists have cracked a mathematical puzzle, completing a theoretical framework for understanding how humans perceive colour. The Los Alamos National Laboratory, headed by Roxana Bujack, employed ...

In a previous work, we empirically analysed the so-called “relevant colours” in paintings. These relevant colours describe the number of colours that stand out for an observer when glancing at a ...

For fans who have colour vision deficiency, the green/red kit clash between Limerick and Cork causes some problems. Photo: Tom Beary/Sportsfile It's something that struck a chord with me, because I am ...