Graphics data processing apparatus having non-linear saturating

Details Graphics data processing apparatus having non-linear saturating Graphics data processing apparatus having non-linear saturating

1989-08-25

1990-06-12

Harkcom, Gary V.

Boots, shoes, and leggings

340701, 340703, G09G 116, G06F 1520

Patent

active

049338781

ABSTRACT:
The graphics data processing apparatus which can logically combine the color data for two image arrays on a pixel by pixel basis, according to a nonlinear saturating function. Two examples of such functions are addition with saturation at the maximum value and subtraction with saturation at the minimum value. These functions can be employed to obtain computer graphics effects not feasible using other function, such as simulating spray painting and light mixing.

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patent: 4590463 (1986-05-01), Smollin
patent: 4694286 (1987-09-01), Bergstedt
patent: 4695966 (1987-09-01), Takakura et al.
patent: 4721951 (1988-01-01), Holler

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