Image processing circuit and associated image processing method
US11127125B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2019 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Oct 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20192
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides an image processing circuit including a region type determination circuit and a filtering circuit. In the operations of the image processing circuit, the region type determination circuit receives pixel values of a plurality of pixels within a region of an image frame, and uses a high-pass filter to filter the pixel values many times to generate a plurality of filtered pixel values, and determines if the region is an edge region, a non-edge region or a mosquito noise region to generate a determination result. The filtering circuit generates a plurality of weights according to the determination result, and uses the plurality of weights to filter a center pixel of the plurality of pixels within the region to generate an adjusted pixel value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.