Method and associated apparatus for transforming of color-image signals for consistent shadow to highlight characteristics
US6278800A · kind A · utility
5Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1993 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Nov 4, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a method and associated apparatus for transforming the color-image signals of a color image reproduction system to an intermediary image metric, defined in terms of colorimetric properties not necessarily corresponding to the colorimetric properties associated with either the system's input or output device, such that nonlinear transformations of all the individual image-bearing signal components, each encoded in terms of the intermediary image metric, result in desirable shadow-to-highlight characteristics for all colored objects of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.