Patent ID: 7280121
Filing Date: 2007-10-09
Classification: G06T

Abstract:
1. An image processing apparatus for generating pixel data inside a drawn area of a screen coordinate system to perform rendering of an image based on image data stored in a memory, and then generating edge information and performing anti-aliasing, comprising: an edge information extracting means for extracting the edge information based on predetermined pixel data stored in the memory; and an anti-aliasing means for determining the content of processing required for anti-aliasing based on the edge information obtained by the edge information extracting means and executing the determined processing, wherein the anti-aliasing means further includes: a first means for detecting an aliasing pattern containing a pixel being processed from the edge information; and a second means for measuring a length, for each pixel being processed, from a start point of the detected aliasing pattern to a change point where a line among an upper and a lower line which forms an edge of the detected aliasing pattern changes from the upper line to the lower line or vice versa, and a length, for each pixel being processed, from the change point to where the detected aliasing pattern ends, and calculating a position of a pixel to be blended with the pixel being processed and a coefficient of blending based on the length from the start point and the length from the change point.