Patent ID: 6717585
Filing Date: 2004-04-06
Classification: G09G,H04N

Abstract:
A color conversion characteristic determining method for use with an image display device including a color conversion characteristic holding means holding a color conversion characteristic; a color conversion means converting, on a pixel-by-pixel basis, an image data represented by three or more colors, referring to said color conversion characteristic; and an image display means performing display based on the image data color-converted by said color conversion means; said method comprising the steps of:(a) setting a conversion characteristic candidate, which is a candidate of said color conversion characteristic; (b) generating sets of predetermined input image data; (c) determining, using the color conversion characteristic candidate that has been set, predicted color-converted data, which are predicted values of the data output from said color conversion means when said input image data are input; (d) determining predicted tristimulus values, which are predicted values of tristimulus values of the colors that are displayed on said image display means when said predicted color-converted data are supplied; and (e) evaluating said predicted tristimulus values; wherein said steps (c), (d) and (e) are repeated after determining a new color conversion characteristic candidate when said predicted tristimulus values are not found to satisfy a predetermined condition as a result of the evaluation of said predicted tristimulus values, and said color conversion characteristic candidate then being used is adopted as said color conversion characteristic, when said predicted tristimulus values are found to satisfy the predetermined condition.