Print proofing using mottling tile
US8031911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2008 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Mar 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6097
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for producing mottling in an image includes modifying digital colorant information in a digital image data file for at least one of a plurality of colorants. The degree of modification is based on digital colorant information in the digital image data file, mottling information from a mottling tile, and a colorant gain curve for at least one colorant. The colorant gain curve is obtained by determining a tint percentage, the variation of the tint of the printed at least one colorant when printed at a tint percentage on volume printing stock. The mottling information has a spatial frequency distribution substantially equal to the spatial frequency distribution of the mottling produced by at least one colorant on a volume printing stock. The method allows the digital image to emulate the image that would result if the digital image was printed on a volume printer on high volume printing stock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.