Apparatus, method and computer program product for providing output image adjustment for image files
US7330286B2 · kind B2 · utility
8Cited by
13References
72Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Feb 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0082
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A CPU of a color printer performs gamma correction and a matrix operation M on an RGB color space image data derived by a matrix operation S. Using gamma correction value settings, the CPU performs gamma conversion of image data. Matrix operation M converts the RGB color space to an XYZ color space. When performing matrix operation M, the CPU refers to a PrintMatching tag and performs the matrix operation using a matrix (M) that corresponds to the indicated color space, in order to reflect the color space used for generation of image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.