AMBIENT LIGHTING DERIVED FROM VIDEO CONTENT AND WITH BROADCAST INFLUENCED BY PERCEPTUAL RULES AND USER PREFERENCES

摘要

Extracting video content encoded in a rendered color space for broadcast by an ambient light source, using perceptual rules in concert with user preferences for intelligent dominant color selection. Steps include quantizing the video color space; performing dominant color extraction by using a mode, median, mean, or weighted average of pixel chromaticities; applying perceptual rules to further derive dominant chromaticities via [1] chromaticity transforms; [2] a weighted average using a pixel weighting function influenced by scene content; and [3] extended dominant color extraction where pixel weighting is reduced for majority pixels;[4] Spatial extraction, temporal delivery and luminance perceptual rules; and [5] transforming the dominant color chosen to the ambient light color space using tristimulus matrices All perceptual rules are modulated in response to explicit indicated user preferences obtained via remote controls, sensors, video meta data, or a graphical user interface.