Shading correcting method and shading correcting apparatus
US5572337A · kind A · utility
8Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1992 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Dec 14, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4076
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Data ID obtained by making analog-to-digital conversion of an output of an image sensor or the like is subjected to shading correction, to obtain correction data SOUT. The correction data SOUT is found by the following equation using white reference data WST and black reference data BST: ##EQU1## where K is a coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.