Color image reading apparatus including color correction means
US5237401A · kind A · utility
15Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1991 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | May 2, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color image reading apparatus includes a multi-chip image sensor having a plurality of image sensor units adapted to read a test chart comprising a color slip having a plurality of colors. A processing circuit is provided for automatically calculating color correcting coefficients, respectively, for the plurality of image sensors and storing them in memory. This will reduce problems of color reproducibility among image sensors and among image reading apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.