Patent ID: 8175382
Filing Date: 2012-05-08
Classification: G06K,H04N

Abstract:
1. A method performed by one or more processors configured with computer readable instructions, the method comprising: receiving an image sequence, the image sequence including an image and a subsequent image; generating an image color tone map for a facial region included in the image; obtaining a set of training images; classifying the set of training images into multiple clusters of images; finding a cluster of images from the multiple clusters of images, the cluster of images being a target for color tone mapping of the image color tone map; normalizing the image color tone map to a color tone map for the cluster of images; applying the normalized color tone map to the image; and applying the normalized color tone map to the subsequent image until an average intensity in a non-facial region of the subsequent image differs from a mean of an average intensity in the image sequence by a threshold amount.