Adaptive pixel compensation method
US8749668B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2012 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Jun 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/134
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An adaptive pixel compensation method for an image processing apparatus includes receiving an image array data, calculating an average of luminance values of a first plurality of green sub-pixels surrounding the green sub-pixel as a first average value, calculating an average of luminance values of a second plurality of green sub-pixels surrounding the green sub-pixel as a second average value, calculating an absolute luminance difference value of the first average value and the second average value, calculating an average luminance gradient value of the green sub-pixel and a third plurality of green sub-pixels surrounding the green sub-pixel, and determining whether to compensate the green sub-pixel according to a luminance value of the green sub-pixel, the absolute luminance difference value and the average luminance gradient value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.