Methods applying color measurement by means of an electronic imaging device
US6768814B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2000 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Apr 20, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is a method of determining a color formula for matching a selected color, such that an electronic imaging device is calibrated , and at the same time or in a next step the selected color is measured with the aid of the electronic imaging device, then the measured color signals of the calibration colors are converted to the known calorimetric data and then the color signals of the measured selected color are converted to colorimetric data; and next, the color formula is determined that most closely matches the calculated colorimetric data of the measured selected color. The invention also determines a color formula for matching a selected color of textured materials; determines the color difference of a selected color compared to a standard color sample; and measures a specific attribute of the color appearance, the so-called texture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.