Conversion of a sub-pixel format data to another sub-pixel data format

Abstract

A method of determining implied sample areas for each data point of each color in a source pixel data specified in a first sub-pixel format is used for sub-pixel rendering an image on a display specified in a second sub-pixel format. Each of the first and second sub-pixel formats comprises a plurality of colored sub-pixels. The method comprises determining a geometric center of each colored sub-pixel of the first format to define a sampling point; and defining each implied sample area by forming lines that are substantially equidistant between the sampling point of one colored sub-pixel and the sampling point of another neighboring same color colored sub-pixel. A similar technique may be used for determining resample areas for computing color values for rendering an image specified in a first sub-pixel format on a display substantially comprising a plurality of colored sub-pixels arranged in a second sub-pixel format.

1 . A display system comprising:
 means for inputting source image data renderable upon a first display of a first subpixel format having a first resolution;   a second display of a second subpixel format, said second subpixel format comprising fewer subpixels than said first subpixel format; and   means for generating intensity coefficients for each subpixel of said second display, said means for generating intensity coefficients further comprising a two-dimensional area sample mapping of said source image data into a target image data, said target image data renderable upon said second display at said first resolution.