Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1997-03-24
1998-06-16
Tung, Kee M.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
395131, 345150, 345153, G06T 0100, G06F 1500
Patent
active
057685690
ABSTRACT:
A method of compressing data representing a plurality of pixels consecutively arranged along a line of an image to be displayed on a computer controlled display is described. The method includes the step of determining color of an initial pixel of the plurality of pixels. The value of a pixel count is then incremented. The value of the pixel count indicates the number of pixels in that color. The color of an adjacent pixel of the initial pixel is then determined. If the color of the adjacent pixel is identical to the color of the initial pixel, then the adjacent pixel is caused to be the initial pixel and the step of incrementing the value of the pixel count is performed. The method then moves to determine the color of the next pixel. If the color of the adjacent pixel is different from the color of the initial pixel, then a datum indicating the color of the initial pixel and the value of the pixel count is generated. A method of using the compressed data of the image to blend the image onto another image is also described.
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Hoddie James P.
Ritchie Ian D.
Apple Computer Inc.
Tung Kee M.
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