Boots – shoes – and leggings
Patent
1988-09-02
1991-05-14
Harkcom, Gary V.
Boots, shoes, and leggings
364519, 364524, 340750, 400 83, G06F 1562
Patent
active
050161911
ABSTRACT:
A pixel processor converts data indicating origin, direction, length and intensity of each of a set of lines forming a picture into a half tone bit map on the picture. The pixel processor organizes the picture into an array of similar half tone cells, each half tone cell being a rectangular array of pixels, by storing adjustable data indicating the size of a half tone cell and a pixel intensity threshold level for each pixel of a half tone cell. When processing each line, the pixel processor reads pixel data words out of the bit map, each pixel data word including at least one bit corresponding to a pixel along the path of the line. For each such bit, the pixel processor determines the half tone cell position of the corresponding pixel, determines whether the pixel intensity threshold level assigned to that half tone cell position is lower than the intensity level of the line and sets the state of the bit accordingly. After suitably altering relevant bits of each pixel data word, the pixel processor writes the altered pixel data word back into the bit map memory.
REFERENCES:
patent: 4591850 (1986-05-01), Lundstrom
patent: 4737916 (1988-04-01), Ogawa et al.
patent: 4794554 (1988-12-01), Tamiya
patent: 4811239 (1989-03-01), Tsao
patent: 4860026 (1989-08-01), Matsumoto et al.
patent: 4930018 (1990-05-01), Chan et al.
Dellett John P.
Harkcom Gary V.
Nguyen Phu K.
Tektronix Inc.
Winkelman John D.
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