Method for assigning pre-press curves
US8717627B2 · kind B2 · utility
2Cited by
7References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2009 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Aug 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for adjusting color tones of an input digital image file to create an adjusted digital image file. A plurality of predetermined curves are provided, each curve specifying an adjusted color tone percentage output as a function of input color tone percentage and representing a combination of midpoint magnitude and contrast different than for any other curve. The method comprises selecting a curve by determining which one of the plurality of curves most closely matches at least two data points. The selected curve is then applied to the input digital image file to produce the adjusted digital image file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.