Patent ID: 8169389
Filing Date: 2012-05-01
Classification: G09G,H04N

Abstract:
1. A method of converting a three-or-more-color-component image input signal to an image output signal for controlling a display device, the method comprising: acquiring the image input signal including a plurality of pixel signals, each pixel signal comprising three or more color components; determining respective residual differences for each color component of each pixel signal, the determining respective residual differences comprising: pixel; determining a limit value of the residual differences, the limit value comprising a maximum value among the determined respective residual differences; calculating a common scale factor for each of the color components, based upon the limit value, the common scale factor comprising the lesser of: an inverse of the limit value; and a maximum common scale factor comprising a maximum intensity value for a white color component; and applying the common scale factor to the image input signal to produce the image output signal.