Patent ID: 6876764
Filing Date: 2005-04-05
Classification: G09G,H04N

Abstract:
1. A method of generating a white signal component from a color signal comprising the steps of: (a) calculating the brightness increases of primary color components constituting the color signal on the basis of each color component; (b) extracting an increase in the white signal component from the brightness increases of the primary color components; and (c) setting the increase in the white signal component as the white signal component of the color signal, wherein, in the step (a), where the color signal is comprised of Red, Green, Blue three-color signals, b vR, vG, and vB which are the respective brightness increases in red, green, and blue components of the color signal, are determined as vR=b 1 *Brt*Ri/M 1 , vG=b 1 *Brt*Gi/M 1 , vB=b 1 *Brt*Bi/M 1 , respectively.