Patent ID: 7084906

Claim:
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) downsampling the luminance and chrominance signals; (c) using such downsampled luminance and chrominance signals to separate the image into textured and nontextured regions having boundaries; (d) cleaning the downsampled chrominance signals in the textured regions in response to the boundaries of the textured region and the downsampled chrominance signals; (e) cleaning the downsampled chrominance signals in the nontextured regions in response to the downsampled chrominance signals; (f) upsampling the downsampled 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.