Patent ID: 6927804
Filing Date: 2005-08-09
Classification: G06T

Abstract:
1. A method of reducing color aliasing artifacts from a color digital image having color pixels comprising the steps of: (a) providing luminance and chrominance signals from the color digital image; (b) using such luminance and chrominance signals to separate the image into textured and nontextured regions having boundaries; (c) downsampling the chrominance signals and texture region mapping; (d) producing cleaned chrominance signals in the textured regions in response to the boundaries of the textured region and chrominance signals; (e) producing cleaned chrominance signals in the nontextured regions in response to the chrominance signals; (f) upsampling the noise-cleaned chrominance signals; and (g) using the luminance and upsampled noise-cleaned chrominance signals to provide a color digital image having reduced color aliasing artifacts.