Image display method, gradation conversion circuit, and image signal conversion apparatus
US6266102A · kind A · utility
30Cited by
31References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1996 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Sep 23, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/202
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display method displays an image by different gradation conversion in every pixel, on the basis of gradation frequency distribution of luminance of pixels near an edge of the image, and counting of gradation frequency of luminance of pixels near the edge is weighted depending on the coordinate values of each pixel so as to eliminate relative contrast drop in the image central part from the image peripheral parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.