Image correction processing system and image correction processing method
US7949201B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2005 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Aug 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4072
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing system includes a local area selecting section configured to select a local area as at least one correction target from an input image, the local area including at least one pixel; a correction amount calculating section configured to calculate a gradation correction amount for the local area as the correction target; and a local gradation correcting section configured to perform a gradation correction to correct a gradation value of the local area based on the gradation correction amount to generate an image with a local gradation correction. Also, the correction amount calculating section includes a peripheral area gradation value calculating section configured to calculate a gradation value of a peripheral area of the local area; and a local area correction amount converting section configured to calculate the gradation correction amount by using the calculated gradation value of the peripheral area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.