| 摘要 |
PROBLEM TO BE SOLVED: To provide an improved anti-aliasing method without the considerable increase of a memory or deceleration of a plotting speed during the generation of discontinuous images. SOLUTION: Concerning the method for performing anti-aliasing of discontinuous images generated from continuous images including one edge (a) or (b) while using a filter function, this method is provided with a process for defining a line sample 303, a process for deriving progressive convolution from the filter function and the line sample, a process for selecting a pixel at a prescribed position in the discontinuous images, a process for directing the line sample concerning the selected pixel, a process for measuring a distance to the said edge along with the line sample directed from one point in the continuous images corresponding to the selected pixel, a process for generating a weighed coverage value by evaluating the progressive convolution in the measured distance and a process for performing anti-aliasing of the pixel in the discontinuous images while relating the weighed coverage value with the pixel. |
