Patent ID: 6282312
Filing Date: 2001-08-28
Classification: G06T,H04N

Abstract:
A digital image processing system comprising:a) one or more opto-electronic image digitization device(s) which digitize still photographic images and produce an extended color gamut digital image corresponding to each still photographic image; andb) an image processing unit, coupled with said image digitization device(s), which is operative to receive a plurality of extended color gamut digital images from said image digitization device(s) and including means for:i) producing at least one limited color gamut digital image from each said extended color gamut digital image by adjusting the color values of the extended color gamut digital image to fit within a limited color gamut;ii) representing each said limited color gamut digital image in a storage color space;iii) determining a difference between one said extended color gamut digital image and its corresponding limited color gamut digital image forniing one or more residual image(s); andiv) storing each limited color gamut digital image in the storage color space with its residual image(s) such that the associated residual images and the limited color gamut digital images in the storage color space are adapted to be used to reconstruct extended color gamut digital images.