Concurrent dithering and scale correction of pixel color values
US5850208A · kind A · utility
11Cited by
12References
8Claims
0Family size
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Key dates
| Filing date | Jul 21, 1997 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Jul 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit in a graphics processing subsystem receives pixel color values as input and concurrently provides both dithering and scale correction of the color values. Pixel color values are initially generated by the subsystem as 8-bit binary quantities, each having a maximum possible value of 255. However, the graphics processing subsystem utilizes a scale of 0 to 256 for processing color values. The correction function prevents a loss of pixel intensity that would otherwise result from representing 8-bit color values on a 0 to 256 scale.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.