Compression method, extension method and image processing apparatus
US8254710B2 · kind B2 · utility
1Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2008 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | May 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a compression method of quantizing and compressing image data of an image, the method comprises the steps of: determining a method of quantization for each pixel; quantizing the image data in pixel unit according to the determined quantization method; storing the quantized image data in a same region of a memory in spite of the quantization method; and storing discrimination data for discriminating the quantization method used for quantizing the image data by corresponding to the quantized image data in the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.