Method and apparatus for the dithering of antialiased vectors

Details Method and apparatus for the dithering of antialiased vectors Method and apparatus for the dithering of antialiased vectors

1989-09-28

1992-11-17

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

358455, 358457, 358458, G09G 500

Patent

active

051647176

ABSTRACT:
In the method and apparatus of the present invention, dithered images are composited with separately rendered undithered images. The dithered image is first transformed back to its unquantized state to include the full range of intensity values by performing a back-transforming process which translates the quantized or dithered value back to its original intensity value. The back transformed dithered image is then combined with the separately rendered, but undithered image using the technique of compositing. The composited image is then dithered to a quantized representation are stored in the frame buffer for subsequent display.

REFERENCES:
patent: 3959583 (1976-05-01), Judice et al.
patent: 3961134 (1976-06-01), Jarvis
patent: 4586037 (1986-04-01), Rosener et al.
patent: 4821334 (1989-04-01), Ogino et al.
patent: 4956638 (1990-09-01), Larky et al.
patent: 4975786 (1990-12-01), Katayama et al.

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