Adaptive color transform to control color inconstancy
US8085435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2008 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Mar 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6088
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for selecting the level of color inconstancy of an output image produced on a digital color printer having a neutral ink and a plurality of color inks is disclosed. The method includes analyzing the distribution of input colors present in the input digital image to determine a color distribution metric related to the importance of producing output images having a reduced color inconstancy when the output image is viewed under a variety of image illumination spectra; selecting a color transform from a set of available color transforms designed to produce output images having different color inconstancy characteristics in response to the color distribution metric; processing the input digital image using the selected color transform to produce a transformed image having a selected level of color inconstancy; and printing the transformed image on the digital color printer to produce an output image having the selected level of color inconstancy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.