Image processor for output devices which transforms data into acceptable color space
US5463480A · kind A · utility
47Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1991 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Mar 6, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6058
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for processing data representing an image in a first color space suitable for controlling a first image output device. The apparatus comprises a processor (11, 14, 17) for reversibly transforming the image into a perceptual color space defined by lightness, colorfulness and hue components, and for modifying the lightness, colorfulness and hue components of the image in accordance with a predetermined algorithm so that all colors in the image fall within the gamut of a second image output device; and a store for storing data defining the modified and unmodified lightness, colorfulness and hue components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.