Color image processing apparatus, image processing apparatus, color image processing method, image processing method, and a computer-readable recording medium for making a computer execute the methods
US7057771B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2004 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | May 12, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/62
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color image processing apparatus comprises a plane signal conversion section which converts a color space expressed by an input color signal image to a plane and generates a plane signal; a chroma identification section which identifies a chroma of the color image based on the generated plane signal and generates a chroma identification signal; a hue area identification section which identifies a hue area in the color image signal based on the generated plane signal and generates a hue area identification signal; and a color conversion section which executes color conversion of the color image signal based on the generated chroma identification signal and the hue area identification signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.