Patent ID: 6683617
Filing Date: 2004-01-27
Classification: G06T

Abstract:
An antialiasing method for use in an image processing apparatus for displaying plural pieces of polygon data having three-dimensional coordinates, in the form of digital images, on a two-dimensional display screen, said method comprising the steps of:creating subpixel masks as patterns of a plurality of subpixels corresponding to regions of a pixel occupied by polygons; causing each of plural pieces of pixel data constituting each polygon data to contain said subpixel mask corresponding thereto; and determining a display color on a pixel-by-pixel basis, based on data sets consisting of said subpixel masks and color data contained in said pixel data, wherein said step of determining a display color on a pixel-by-pixel basis includes; determining data sets consisting of n-pieces of final color data, with n being less than the number of subpixels constituting one pixel, and n final subpixel masks representative of regions which said final color data occupies within one pixel, with n being less than the number of subpixels constituting one pixel, from said data sets consisting of said subpixel masks and color data; and combining said determined data sets consisting of n-pieces of final color data and n final subpixel masks with one another.