Selective chrominance decimation for digital images

Details Selective chrominance decimation for digital images Selective chrominance decimation for digital images

H - Electricity

04

N

H04N 11/02 (2006.01) H04N 7/26 (2006.01) H04N 7/46 (2006.01) H04N 7/50 (2006.01) H04N 9/64 (2006.01)

Patent

CA 2449448

A method of decimation of a digital image, the digital image represented by a plurality of pixels, is claimed. In the pixel domain, the digital image is divided into a plurality of blocks (304). Certain ones of the blocks are selectively decimated based upon predetermined criteria (320). In an embodiment, the chrominance portions of a given pixel block are decimated.

La présente invention concerne un procédé de décimation d'une image numérique, l'image numérique étant représentée par une pluralité de pixels. Dans le domaine des pixels, on divise l'image numérique en une pluralité de blocs (304). On effectue une décimation sélective de certaines des blocs en fonction de critères prédéterminés (320). Dans un mode de réalisation, on effectue la décimation des portions de chrominance d'un bloc de pixels donné.

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