Method for optimized color control in a printing machine
US10389917B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2018 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Feb 23, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for printing on a printing machine with color space transformation using tables formed of n-dimensional orthogonal grids includes printing and colorimetrically measuring a test chart in a target color space providing measured values corresponding to sampling points in the color space, interpolating between the sampling points to determine further sampling points, and using existing sampling points to create an ICC table for color space transformation between target and process color spaces. A computer isolates combinations of n−1-dimensional partial grids for process color combinations from grids of the table in the process color space. Partial grids are converted into two-dimensional segments. Sampling points of segments are modified, removing nonrequired sampling points and distributing sampling points in the partial grid. The partial grids are reintegrated into the grid and color management of the printing operation and the printing operation using the reduced ICC table occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.