Method and apparatus for generating a color reference for a print image
US7750920B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2007 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Dec 23, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6052
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for generating a color reference for an image to be printed for visualizing the same on a true-color monitor is disclosed. Lower-resolution image data are generated from high-resolution raster data for the image to be printed which are obtained from page description data for the image to be printed. The lower-resolution data are converted into display data which serve as color reference for the image to be printed and which can be visualized on a true-color monitor. An actual transmission characteristic is ascertained. The actual transmission characteristic ascertained is compared with a specified (desired) transmission characteristic, where, on the basis of this comparison, a correction curve is calculated which is required to arrive at the desired transmission characteristic starting with the actual transmission characteristic. The display data are ascertained using the calculated correction curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.