Image processing apparatus, image processing method, program, and recording medium
US7167275B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 2001 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Apr 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To provide a method for generating color-correction lookup table for better using a color reproduction area of an output system, an image processing apparatus, an image processing method, and a recording medium.An image processing apparatus uses a color-correction lookup table to apply a desired color correction to an input image signal. The image processing apparatus is provided with a color-correction lookup table for chroma enhancement, which applies chroma-enhancement processing to a desired color point in the input image signal in an area where an output system gamut is wider than an input system gamut, and uses the color-correction lookup table for chroma enhancement according to the input image signal for performing the desired color correction. The color-correction lookup table for chroma enhancement does not perform the chroma-enhancement processing when the desired color point is close to achromatic color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.