Image processing method, image processing apparatus, and storage medium
US6674905B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2000 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Jan 21, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20096
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
When a dispersion value of a shading value is equal to or more than a threshold value in the neighborhood of a standard point, it is determined that an image pattern has a texture dominant characteristic. When the value is less than the threshold value, a change of the shading value is determined to be moderate (S11). When the dispersion value is equal to or more than the threshold value (S11), a texture characteristic amount is loaded (S12), a characteristic amount suitable for area growth (e.g., texture energy) is calculated (S13), and a distance DT concerning the texture characteristic amount is obtained (S14). When the dispersion value is less than the threshold value (S11), a color component characteristic amount is loaded (S16), a characteristic amount suitable for the area growth (e.g., a characteristic vector obtained from a local histogram concerning a color component or a list of representative color components) is extracted (S17), and a distance DC concerning the color component is obtained (S18). The area is grown based on the corresponding characteristic amount (S15, S19), and a renewal position is determined based on a new borderline of a core area obtained by unifyin…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.