Selective color correction
US5506946A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1994 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Oct 14, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for modifying colors in an image displayed on a display device by a computer controlled display system. The method includes selecting at least one color being representative of at least one pixel of the image, where the image includes a plurality of pixels on the display device; determining the colorimetric values for the at least one color; selecting a second color and determining the colorimetric values for the second color; and modifying the colorimetric values of a plurality of pixels in said image such that for any given pixel of the plurality of pixels having colorimetric values being matched to the colorimetric values of the at least one color, then the colorimetric values of the given pixel are modified to match the colorimetric values of the second color. The apparatus of the invention includes a display device; a cursor positioning device; a plurality of smoothed, look-up tables to provide a selection of a region of a color space, which selection is representative of a portion of said image near the at least one color; memory for storing data representative of the region and a second color; and a data processing unit. The method and apparatus allow …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.