Image processing method and apparatus thereof
US5680230A · kind A · utility
86Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1994 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Sep 7, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is intended to provide an image processing apparatus capable of two-color output representation in high accuracy even with a full-colored original. A color original is entered by an input means for prescan, a density distribution with respect to a hue is obtained for each electric signal of color image information, and a characteristic point of the color original image is obtained from the result of the density distribution. The two-color separation means separates a full-colored original to two colors free from the same color representation according to the information of the characteristic point obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.