Image processing apparatus and image processing method
US6437881B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1998 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Sep 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image of an original document supplied from a scanner portion or the like is, in an attribute-determining portion, subjected to a process for determining whether each pixel is a character pixel or a picture pixel. Thus, separating information is transmitted to a two-layer separating portion and transmitted to a resolution converting portion as data of a separating information plane. The two-layer separating portion separates the image of the original document into a character information plane and a picture information plane in accordance with separating information. The resolution converting portion has a plurality of resolution converting methods. In accordance with transmission attribute information supplied from outside, a transmission-attribute-information recognizing portion selects a resolution converting method independently for each plane. The resolution converting portion uses the selected resolution converting method to subject each plane to the resolution converting process. Each plane submitted to the resolution conversion is formatted in an image-format-lapping portion so as to be transmitted from a transmitting portion through a network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.