Perceptual Color Enhancement for LED Illuminations

Abstract

According to the spread of digitally-controllable decorative illuminations, dimming mechanisms using digital images have been developed for efficiently controlling various pattern of full colors. The color of lights, however, cannot be correctly converted due to the large difference in color gamut between those of LED illuminants and image pixels. This article, therefore, introduces a perception-based color enhancement technology. We can enrich the color of illuminations while preserving hue component of input images and avoiding color saturation, by which the color quality of illuminations can be improved through a simple calibration process.