The University of Manchester have revised colour mapping to improve image quality and transform the palate of visual image creation
Commercial display technologies produce images using a trichromatic (red, green, blue) colour space, but this is based upon an out-of-date understanding of human vision. It is now known that the full range of photoreceptors in the human eye includes cells that express melanopsin, a photopigment sensitive to 480nm light. Trichromatic displays do not independently control the excitation of melanopsin, and therefore provide an incomplete recreation of real-world images.
The team at The University of Manchester have developed two prototype systems (a digital projector and LCD screen) that output four, rather than three, colour channels (red, green, cyan, violet). This has the benefit of improving a viewer’s conscious perception: images appear brighter, and more vivid and textured. Furthermore, this development can be utilised to improve “night-time” viewing settings, reducing colour balance distortion (such as yellowing), while still preserving circadian effects.
The team are looking for licensing and joint development opportunities to inform design-for-manufacture specifications and support the testing of new prototypes for Micro-LED/OLED/LCD displays or digital cameras.
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