Image signal processor, image signal processing method for use in the same, and program
US8018468B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2008 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Jun 7, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is an image signal processor for carrying out conversion into an xvYCC signal by using a photograph film as a material, the image signal processor including: acquisition means for acquiring print film concentration data based on said photograph film; generation means for generating spectral data on an image on a screen previously presumed based on spectral concentration characteristics of colors of a positive film having an image projected on said screen, a spectral distribution of a projection light source, and the print film concentration data; arithmetical operation means for arithmetically operating an XYZ tri-stimulus value corresponding to the spectral data; and conversion means for converting the XYZ tri-stimulus value into the xvYCC signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.