Image processor and image processing method generating first and second multi-value density data or performing quantization based on an image characteristic
US8830530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2010 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Jun 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0082
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is an image processor and image processing method that are capable of suppressing both density unevenness and graininess that occur due to deviation of the printing position of dots that are printed by a plurality of relative movements (or a plurality of printing element groups). In order to accomplish this, the dot overlap rate of an image characteristic in which density unevenness stands out is made higher than the dot overlap rate of an image characteristic in which other defects stand out more than the density unevenness. By doing so, it is possible to suitably adjust the dot overlap rate according to an image characteristic, and to output an image having no density unevenness or graininess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.