H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 1/21 (2006.01) G06K 15/02 (2006.01) G06K 15/12 (2006.01)
Patent
CA 2068528
2068528 9107843 PCTABS00005 A non-gray scale anti-aliasing method for smoothing the horizontal components of the edges of an image to be printed by a laser printer having unequal pixel resolutions in the horizontal and vertical dimensions is accomplished by selectively modifying the on and off states of pixels on either side of each vertical transition point along the horizontal components of raster lines representing the edges of the pixel representation of the image. A processor is provided with an ideal outline of the image and rasterizes the ideal outline of the image to determine which pixels to turn on and which pixels to turn off in a frame buffer that stores a pixel representation of the image to be printed by the laser printer. The modified pixel representation in the frame buffer is then communicated to the laser printer such that the laser printer may print the smoothed image.
Gilbert John Mark
Lukis Lawrence J.
Steidel Leonard R.
Lasermaster Corporation
Riches Mckenzie & Herbert Llp
LandOfFree
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