Method and apparatus for the dithering of antialiased vectors
US5164717A · kind A · utility
21Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1989 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Sep 28, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4057
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.