Image processor and image processing method
US8619319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2010 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Dec 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40068
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Inputted image data is converted to M number of multi-value data having a lower resolution than the inputted image data, and after quantization processing has been performed for each of the M number of multi-value data, an image is printed by M number of relative movements (M-pass printing) that corresponds to the M number of quantized data. By doing so, when compared with the case in which a resolution reduction process is not performed, it is possible to suppress the number of pixels that become the object of quantization processing, and it becomes possible to output an image with no fluctuation in image density or density unevenness without a decrease in the processing speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.