Patent ID: 6421063
Filing Date: 2002-07-16
Classification: G06T

Abstract:
A computer graphics system for efficiently implementing a pixel zoom function, comprising:(a) means for defining an zoomed image of a region in an original raster image having pixels defined in a coordinate system with orthogonal first and second axes, the region comprising a plurality of original pixels, said means comprising: (1) means for determining a starting raster position for said zoomed raster image; (2) means for determining a first number of first pixels along said first axis for each row of said original pixels; and (3) means for determining, for each row of said original pixels, a second number of second pixels along said second axis for each column of said original pixels; and (b) means for rendering said zoomed image based upon said starting raster position, said first numbers corresponding with said original pixel rows, said second numbers corresponding with said original pixel columns.