Image processing apparatus, computer readable medium storing program, method and computer data signal for partitioning and converting an image
US8369639B2 · kind B2 · utility
8Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2008 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Feb 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus includes a partitions setting unit that sets up image partitions into which an input image is separated; a tone number setting unit that sets the number of tones for each of the image partitions set up by the partitions setting unit, based on gray levels of pixels included in each of the image partitions; and a conversion unit that converts each of the image partitions of the input image into an image partition represented with tones equal to or less than the number of tones set by the tone number setting unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.