Patent ID: 6343145
Filing Date: 2002-01-29
Classification: G06T,H04N

Abstract:
A system for processing images, based on using a cube with a plurality of sub-cube portions to transform any possible source color image values to target color image values, the system comprising:an image file subsystem providing at least one source color image value representing a source color image; a color transformation subsystem operatively coupled to the image file subsystem and accepting as input the at least one source color image value and producing at least one target color image value therefrom; and an image forming subsystem operatively coupled to the color transformation subsystem and forming a physical manifestation of the source color image from the produced at least one target color image value, the color transformation subsystem being configured to: define a memory area for at least one sub-cube portion as representative of the at least one source color image value; determine target color values corresponding to the defined sub-cube portion to populate the memory area; and determine the at least one target color image value in response to the determined target color values; such that at least the target color values of one sub-cube portion have been determined by sampling, but not by interpolation, wherein the color transformation subsystem is further configured to divide the sub-cube portion into mini-cube portions and to determine target color values corresponding to each mini-cube portion and wherein the color transformation subsystem is configured to determine an accuracy of interpolation for each of the mini-cubes; and wherein the color transformation subsystem is configured to determine the target color values in a first manner in response to an accuracy of interpolation exceeding a predetermined threshold and to determine the target signal in a second manner in response to the accuracy of interpolation not exceeding a predetermined threshold.