Patent ID: 6275263
Filing Date: 2001-08-14
Classification: G06T

Abstract:
A method for simultaneously performing vertical scaling and 4:2:2 to 4:2:0 color format conversion on incoming color space component data of a video frame, the incoming color space component data having first color space component data, second color space component data, and third color space component data, the method comprising the following steps:separating each byte of the first, second, and third color space component data;determining a scaling factor, the scaling factor indicating a number of bytes to average;first performing an f:1 scale down for each byte of the first color space component data when the scaling factor is equal to f, the f:1 scale down calculations being performed in a color space;second performing a 2f:1 scale down for each byte of the second and third color space component data when the scaling factor is equal to f the 2f:1 scale down calculations being performed in the color space.