Image processing apparatus and method, and image processing program
US8619162B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Nov 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/646
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Whether a pixel of interest contained in applied image data exhibits color bleed (a false color or purple fringe) is determined. If the pixel of interest is determined to exhibit color bleed, a direction along which luminance is monotonically decreasing in the vicinity of the pixel of interest is discriminated using the pixel of interest as a starting point. A search is performed in the direction of monotonically decreasing luminance to find a pixel where the monotonic decrease in luminance ends. The found pixel where the monotonic decrease in luminance ends is decided upon as a target pixel and a correction value for causing the color of the pixel of interest to match the color of the target pixel is calculated. The color of the pixel of interest is corrected using the calculated color correction value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.