Image processing apparatus
US7466453B2 · kind B2 · utility
3Cited by
23References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2002 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | May 2, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An edge area is detected from an image as a first characteristic. It is possible that the first characteristic can not be detected. An edge is detected from the image as a second characteristic. The second characteristic is expanded. When the first characteristic is detected, the first characteristic is set as a third characteristic. When the first characteristic is can not be detected, the second characteristic is set as the third characteristic. Processing such as ink generating/under-color removing or intermediate tone processing or gamma correction is performed based on the third characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.