Patent ID: 6727908
Filing Date: 2004-04-27
Classification: G06T

Abstract:
A method for calculating a color value for a destination pixel from color values of adjacent source pixels arranged in a two axes coordinate system and covering an area, the method comprising:defining first, second, and third domains for the area covered by the adjacent source pixels, each domain having an interpolation function associated therewith, the first, second, and third domains defined as: 0&lE;rUâˆ’pu), (1âˆ’pu)&lE;rUâˆ’pu/2), and (1âˆ’pu/2)&lE;rU<1, respectively, where rU represents the fractional coordinate of the destination pixel along a first axis relative to the one source pixel, and pu represents the relative size of the source pixel to the destination pixel; based on the location of the destination pixel relative to one of the plurality of source pixels, identifying the domain in which the destination pixel is located; and calculating a color value for the destination pixel using the interpolation function associated with the identified domain.