Color balanced compression in dynamic range mismatched color systems
US9014472B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Aug 8, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/001
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems and processor-readable media for color balanced compression in dynamic range mistmatched color environments. An input L* can be compensated based on L*min in a destination space with respect to shadow colors while configuring a perceptual LUT during a profile phase. Input opponent color components a* and b* can be compressed based on how much L* is compensated to generate newly compressed L*a*b* values. The newly compressed L*a*b* values can be treated as an output L*a*b* to configure the perceptual LUT for color balanced compression thereof. Finally, an operation can be performed for recording in the output LUT, optimized CMYK values with respect to the output L*a*b* to configure the perceptual LUT in an ICC profile and result in the color balanced compression thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.