Color correction method and color correction device applied to color signal vector using correction matrix
US7831092B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2004 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Aug 26, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/68
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a color correction method of performing correction by dividing the color plane into a plurality of areas, and correcting the color according to different methods for each divided area, color shifts generated in converting color signal vectors are prevented from arising.When determining which area of the color signal plane divided by area boundary lines passing through the origin of the color signal plane includes the input color signal vector, and correcting the input color signal vector by converting the input color signal vector using a correction matrix having been designated in advance for the area determined to include the input color signal vector, a correction matrix including a component for performing parallel translation and a component for performing linear transformation is used as a correction matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.