Data processing system and data processing method forming a high-quality image on a printing medium by selecting a mask pattern data group based on a frequency characteristic of the input image data and mask pattern data group
US8836994B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2012 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Oct 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention has an objective of providing an image formation apparatus that can output binary image data on a printing medium with a favorable quality. According to the present invention, a plurality of different pieces of mask data stored in a storage unit is used to generate a plurality of different pieces of divided data. Then, the frequency characteristic information of the respective plurality of generated thinned images is calculated. Thereafter, the pieces of frequency characteristic information of the respective plurality of generated thinned images are compared to select, from among the plurality of pieces of mask data stored in the storage unit, a divided mask pattern to be used for the input image data. Then, the selected divided mask pattern is used to form the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.