Method and apparatus for identifying the color of an image
US5479524A · kind A · utility
8Cited by
6References
5Claims
0Family size
Inventors
Key dates
| Filing date | Nov 18, 1993 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Nov 18, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/462
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and an apparatus to reduce the errors in linearly transforming the RGB values to the XYZ values of the colors of an image. The image is measured twice, once with and once without a filter between the image and the sensors measuring the image. The apparatus is capable of generating at least three output values substantially simultaneously to measure the color of each element of the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.