Image processing method and apparatus
US7791759B2 · kind B2 · utility
1Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2004 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Nov 15, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing method includes the steps of detecting the dynamic range of input image data, performing edge enhancement processing to increase the number of grayscale levels of the input image data, and performing dithering processing to reduce the number of grayscale levels of each pixel of the input image data. The number of pseudo grayscale levels is determined based on a parameter indicating the level of the dynamic range and a parameter indicating the level of the edge enhancement processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.