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Image processing apparatus, image processing program and storage medium

An image processing device and image technology, applied in image communication, instruments, character and pattern recognition, etc., can solve the problems of reducing accuracy and increasing judgment errors, and achieve the effect of reducing file size and maintaining visibility

Inactive Publication Date: 2005-08-03
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the size of the block is made smaller, the information for judging whether it is a character area or a halftone area will be reduced, and the possibility of misjudgment will increase and the accuracy will decrease

Method used

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  • Image processing apparatus, image processing program and storage medium
  • Image processing apparatus, image processing program and storage medium
  • Image processing apparatus, image processing program and storage medium

Examples

Experimental program
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Embodiment Construction

[0108] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

[0109] refer to Figure 1 to Figure 4 , the image processing apparatus and program in the preferred embodiment of the present invention will be described.

[0110] figure 1 The electrical connections of the image processing apparatus 1 in this embodiment are shown. Such as figure 1 As shown, the image processing apparatus 1 is a computer such as a personal computer (PC), and includes a CPU (Central Processing Unit) 2 that collectively executes various operations and controls of the respective components of the image processing apparatus 1, and contains various types of ROMs (Read Only Memory) and RAM (Random Access Memory) memory 3, and bus 4 interconnecting CPU2 and memory 3.

[0111] The image processing device 1 also includes a magnetic memory 5 such as a hard disk drive interconnected by a bus 4, an input device 6 such as a keyboard and a mouse, a ...

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Abstract

An image processing apparatus comprises a unit acquiring a multi-level image as a processing-object image, a unit acquiring a binary image which is created based on the multi-level image, a unit extracting a specific attribute region which is a region with a specific attribute from the multi-level image, a unit changing pixels other than the specific attribute region in the binary image to white pixels, a unit creating a multi-level image in which the pixels of the specific attribute region are changed by a background color, a unit determining a color of the specific attribute region, a unit creating an image of the specific attribute region having the color determined, an image coding unit carrying out compression coding of two or more images which are created respectively, and a unit creating an integrated file in which the coded images are integrated.

Description

technical field [0001] The present invention relates to an image processing device, an image processing program, and a storage medium that can obtain a significantly reduced file size without reducing the image quality of a multilevel image that is a processing target image too much. Background technique [0002] Generally, since the file size of a color image is very large, the transmission of the color image requires a lot of time, and the storage of the color image requires a large storage area. Therefore, for the transmission and storage of color images, it is necessary to provide a technology that can reduce the file size without reducing the image quality of the color images. [0003] Currently, methods such as performing JPEG compression to compress images are widely used. This JPEG compression is an excellent method for compression of natural images such as photographs, but it is not suitable for compression of document images containing characters. Abnormal noise,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/38G06K9/20H04N1/387H04N1/40H04N1/409H04N1/41H04N1/413H04N1/64
CPCH04N1/40062G06K9/00456H04N1/41G06V30/413
Inventor 长谷川史裕关口优宫泽利夫
Owner RICOH KK
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