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Generating, storing, and displaying graphics using sub-pixel bitmaps

  • US 7,570,828 B2
  • Filed: 03/16/2007
  • Issued: 08/04/2009
  • Est. Priority Date: 03/23/2004
  • Status: Active Grant
First Claim
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1. A method for generating sub-pixel bitmaps of images comprising pixels, the method comprising:

  • for each pixel in an image identifying color information by;

    responsive to the pixel comprising multiple colors;

    for each color, assigning a weight to the color based on a proportion of area of the pixel that is covered by the color; and

    storing the identified color information for each pixel of the image as a sub-pixel bitmap using run-length encoding to store the identified color information as alternating sequences of single color pixels and multi-color pixels.

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