Identifying color spaces from color specifications
US6754382B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2000 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Apr 9, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for identifying an unknown color space from a color specification. The specification defines a transformation between the unknown color space and a well known color space. A set of well-separated test colors is selected. A test color space is selected. The test colors are represented in the test color space. The color specification is used to transform the test colors from the unknown color space to the well known color space. The properties of the well known component values of each of the test colors in the well known color space are used to determine if the color specification expressed a valid mapping from the test color space to the well known color space. Alternatively, the relationship between the component values for each of the test colors, or the relationship between the component values of different test colors is used to determine the validity of the mapping. If the mapping is valid, the unknown color space is identified as the test color space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.