Patent ID: 6243133
Filing Date: 2001-06-05
Classification: H04N

Abstract:
A scene balance correction method for a digital imaging device, comprising:a) determining a low-resolution image from an input image in an input color space;b) applying a color transformation to convert the low-resolution image to a standard color space to form a standard color space low-resolution image, wherein the standard color space has a defined set of additive RGB primaries having a matrix relationship to CIE XYZ tristimulus values and that are selected so as not to cause any substantial color gamut limitations on the standard color space low-resolution image;c) analyzing the standard color space low-resolution image to determine a set of standard color space scene balance correction factors;d) determining a set of corresponding input color space scene balance correction factors from the standard color space scene balance correction factors using the color transformation; ande) applying the corresponding input color space scene balance correction factors to the input image to form a corrected input image.