Method of calculating noise from a digital image utilizing color cross correlation statistics
US6804393B2 · kind B2 · utility
9Cited by
1References
17Claims
0Family size
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Key dates
| Filing date | Jan 2, 2001 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Nov 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of calculating a noise characteristic value for a source digital image includes receiving a source digital image including pixels corresponding to two or more different colors; using pixel values corresponding to a first color to produce at least one color correlation term for pixels corresponding to a second color which respectively indicate the extent of the noise content in the pixel values of the second color; and using the color correlation term to calculate a noise characteristic value for the pixels corresponding to the second color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.