Patent ID: 8165222
Filing Date: 2012-04-24
Classification: H04N

Abstract:
1. A method executed in an apparatus for encoding inputted data pertaining to an image comprising: organizing said inputted data into an array of rectangular image data blocks, each including M rows of pixels and N columns of pixels, where M and N are even integers, said array of blocks including border blocks and interior blocks, where for each interior block A, choosing every other pixel along edges of said block A such that either most upper left pixel of block A is chosen or most upper right pixel of block A is chosen, and exchanging every chosen pixel with a diagonally adjacent pixel in a neighboring data block, to form a modified block A; performing transform coding of said modified block A to obtain coefficients; quantizing said coefficients, employing a quantization parameter that is based on bandwidth of a channel that is available for transmitting information about said, resulting in information about said image; and outputting said information.