Grayscale mistracking correction for color-positive transparency film elements
US7369273B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Jul 27, 2004 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Sep 16, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6077
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a color image transformation method and system, a photographic color-positive transparency media bearing a captured image is transmission scanned to provide a scanned image. The scanned image has an overall cyan-blue color balance and has grayscale mistracking relative to colorimetric chromaticity. The scanned image is automatically transformed to intermediary color image data encoding values. Both the overall cyan-blue color balance and the mistracking are corrected during the transforming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.