Patent Document ID: 6151420
Application ID: 08573504
Patent Status: 1

Claim One:
1. A method for minimizing blocking artifacts which appear in an image comprising the steps of; providing said image being represented as a plurality of adjacent, overlapping blocks of pixels, said blocks having been separately filtered by a predetermined number of different filters; choosing measurement points so that said adjacent blocks have at least one of said measurement points in common. wherein said measurement points are chosen to fall between said pixels or on said pixels; determining measurement point values at two or more of said measurement points within each said block; determining measurement point correction values based on said determined measurement point values at each said measurement point for each said adjacent block; determining true pixel correction values for preselected pixels of each said block by interpolation from said measurement point correction values; and mininmizing said blocking artifacts by adjusting said pixels of said block by said true pixel correction values, wherein all of said steps occur entirely in a spatial domain or a frequency domain.