Color characteristic measurement apparatus, color characteristic measurement method, and picked up image data storage medium
US6859224B2 · kind B2 · utility
2Cited by
20References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
It is an object of the invention to measure the precise color characteristic of an image pickup machine and accurately reproduce a subject in an image display unit.A color characteristic measurement apparatus which has a test chart (1) as a subject of an image pickup machine (6), a hole (2) made in the test chart (1), a black box (3) placed on a rear face of the test chart (1) and formed on an inner surface in black, and a light output section (4) placed in the black box (3) at a position where the light output section (4) can be observed through the hole (2) from the outside.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.