Calibration system and calibration method
US7646507B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 4, 2006 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Jan 11, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A calibration system includes: an image formation unit that outputs a patch sheet having a plurality of patch patterns based on different gradation values for each color of color material that is used; a selection unit that receives an instruction to select a device from among a plurality of color measurement devices comprising a first color measurement device and a second color measurement device of a lower color measurement accuracy than that of the first color measurement device; a color measurement unit that receives data of a color measurement result for the patch sheet that is color-measured by the color measurement device selected by the selection instruction; a color measurement value determination unit that acquires color measurement values for each of the patch patterns on the basis of the color measurement result data received; and a color adjustment unit that generates color correction information of the image formation unit on the basis of the color measurement values acquired. In the system, the output patch sheet is common irrespective of the color measurement device selected by the selection instruction and, when the second color measurement device is selected by th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.