Image processing apparatus
US6636629B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 2000 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Apr 23, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus includes an interpolation unit, compensation value calculation unit, and compensation unit. The interpolation unit interpolates the pixel value of each color signal at an interpolation point using the pixel values of pixels in the same color falling within a predetermined interpolation region including the interpolation point, and outputs the pixel value as an interpolated pixel value at the interpolation point for each color signal. The compensation value calculation unit generates a pixel compensation value for compensating the pixel value of the interpolation point using the pixel values of a plurality of pixels around the interpolation point that fall within a compensation region wider than and including the interpolation region. The compensation unit compensates the interpolated pixel value of each color signal at the interpolation point that is output from the interpolation unit by using the pixel compensation value corresponding to the interpolation point that is obtained by the compensation value calculation unit, and outputs the compensated interpolated pixel value as a new pixel value of each color signal at the interpolation point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.