Colorimetric value acquisition method, image forming device, and colorimetric value acquisition control program
US9800766B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 2, 2016 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Nov 2, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0094
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A colorimetric value acquisition method in a system including a printing unit, a scanner, and a colorimetric unit, wherein the system executes: first processing to cause the printing unit to print a first chart, to cause the scanner to measure all the patches to acquire RGB values, to cause the colorimetric unit to measure all the patches to acquire colorimetric values, and to create a scanner profile; second processing to cause the printing unit to print a second chart, to cause the scanner to measure all the patches to acquire RGB values, and to cause the colorimetric unit to measure a part of the patches; third processing to specify an RGB value; fourth processing to calculate a difference between the RGB value and an RGB value; fifth processing to calculate a corrected RGB value; and sixth processing to acquire an estimated colorimetric value and output the estimated colorimetric value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.