Method of determining color signals for input signals at vertices in input color space
US5519515A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Sep 26, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color signal determining method comprises steps of: dividing a three-dimensional input color space into a plurality of unit solid figures, each of the solid figures having a set of vertices; determining a plurality of color correction parameters based on input signals at all the vertices; producing a simulator which correlates predetermined color signals with simulated input signals through the color correction parameters; and determining each of first color signals for the input signals at all the vertices by selecting one of the predetermined color signals when a color difference between a color correction parameter relating to one of the input signals at the vertices and a color correction parameter relating to one of the simulated input signals is detected to be smallest among color differences between the above one of the input signals and all the simulated input signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.