Image processing system

• US 20070097403A1
• Filed: 10/10/2006
• Published: 05/03/2007
• Est. Priority Date: 10/27/2005
• Status: Abandoned Application

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: Itoh, Hitoshi, Miyazawa, Toshio, Hasegawa, Fumihiro, Nagatsuka, Hiroaki
• Application Number:
  US11/544,551
• Publication Number:
  US 20070097403A1
• Time in Patent Office: Days
• US Class Current: 358/1.13
• CPC Class Codes: H04N 1/3871 the composed originals being of different kinds, e.g. low- and high-resolution originals

Abstract

An image processing system is disclosed that is able to provide an image suitable for a specified application. The image processing system includes a first image processing device for separating an input image into plural divisional images, which are processed by different image processing methods, in accordance with the output device of the input image; and a second image processing device for producing an output image suitable for a specified application from the divisional images. The first image processing device includes an image area division section for determining which of a first area and a second area, sub image areas of the input image belong to, and a selection section which uses the sub areas of the input image as the divisional images according to the determination results of the image area division section.

Claims

1. An image processing system, comprising:

a first image processing device configured to separate an input image into a plurality of divisional images in accordance with an output device, said divisional images being processed by different image processing methods; and

a second image processing device configured to produce an output image suitable for a specified application from the divisional images.

2. The image processing system as claimed in claim 1, wherein

the first image processing device comprises:

an image area division section configured to determine which of a first area and a second area each of a plurality of sub areas of the input image belongs to; and

a selection section configured to use the sub areas of the input image as the divisional images according to the determination result of the image area division section.

3. The image processing system as claimed in claim 1, wherein

the second image processing device comprises:

a filtering and dithering section configured to perform filtering and dithering on each of the divisional images according to one of a file format, a compression scheme, and an image bit number of the corresponding divisional image; and

a combining section configured to produce the output image by combining the images obtained by the filtering and dithering.

4. An image processing system, comprising:

a first image processing unit configured to separate an input image into a plurality of divisional images in accordance with an output device, said divisional images being processed by different image processing methods; and

a second image processing unit configured to produce an output image suitable for a specified application from the divisional images.

5. The image processing system as claimed in claim 4, wherein

the first image processing unit comprises:

an image area division section configured to determine which of a first area and a second area each of a plurality of sub areas of the input image belongs to; and

a selection section configured to use the sub areas of the input image as the divisional images according to the determination result of the image area division section.

6. The image processing system as claimed in claim 4, wherein

the second image processing unit comprises:

a filtering and dithering section configured to perform filtering and dithering on each of the divisional images according to one of a file format, a compression scheme, and an image bit number of the corresponding divisional image; and

a combining section configured to produce the output image by combining the images obtained by the filtering and dithering.

7. An image processing device, comprising:

a filtering and dithering section configured to input a plurality of divisional images, and perform filtering and dithering on each of the divisional images according to one of a file format, a compression scheme, and an image bit number of the corresponding divisional image; and

a combining section configured to produce an output image by combining the images obtained by the filtering and dithering.

8. The image processing device as claimed in claim 7, wherein

when the file format, the compression scheme, and the image bit number indicate the divisional images are color or grey scale images, the filtering and dithering section produces a two-level image able to represent a grade.

9. The image processing device as claimed in claim 7, wherein the filtering and dithering section changes processing to be performed according to an output device of the output image.

10. An image processing method, comprising the steps of:

inputting a plurality of divisional images, and performing filtering and dithering on each of the divisional images according to one of a file format, a compression scheme, and an image bit number of the corresponding divisional image; and

producing an output image by combining the images obtained by the filtering and dithering.

11. A storage medium for storing an image processing program executable on a computer and able to drive the computer to carry out the steps of:

inputting a plurality of divisional images, and performing filtering and dithering on each of the divisional images according to one of a file format, a compression scheme, and an image bit number of the corresponding divisional image; and

producing an output image by combining the images obtained by the filtering and dithering.

12. An image processing program executable on a computer and able to drive the computer to carry out the steps of:

inputting a plurality of divisional images, and performing filtering and dithering on each of the divisional images according to one of a file format, a compression scheme, and an image bit number of the corresponding divisional image; and

producing an output image by combining the images obtained by the filtering and dithering.