Patent ID: 6229521
Filing Date: 2001-05-08
Classification: G06T,G09G,H04N

Abstract:
A method for antialiasing fonts for and displaying fonts on an interlaced display, comprising:obtaining an original bitmap of a character in the font which is larger than a desired font size for the character;performing a weighted filtering on the original bitmap to form a filtered bitmap by computing each pixel in the filtered bitmap as a weighted average of pixels in the neighborhood of a corresponding pixel in the original bitmap;reducing the filtered bitmap to the desired size to form a reduced bitmap so that each pixel in the reduced bitmap corresponds to a corresponding block of pixels in the filtered bitmap, and each pixel in the reduced bitmap is a weighted average of pixels in the corresponding block in the filtered bitmap;generating a bitmap for display from the reduced bitmap;storing the bitmap for display in a memory;retrieving the bitmap for display from the memory; andoutputting the bitmap for display to the interlaced display.