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Image processing program and image processing apparatus

An image processing device and image processing technology, which are applied in image data processing, image analysis, instruments, etc., can solve the problems of distinguishing between written text and preprinting, large dispersion, etc.

Inactive Publication Date: 2008-10-29
HITACHI OMRON TERMINAL SOLUTIONS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the blurring of the color, the dispersion of color information such as red component, blue component, green component, lightness, chroma, hue, brightness, etc. of preprinted or inscribed text becomes larger, so it becomes difficult to distinguish between inscribed text and preprinted

Method used

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  • Image processing program and image processing apparatus
  • Image processing program and image processing apparatus
  • Image processing program and image processing apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] figure 2 It is a figure which shows one embodiment of the image processing apparatus of this invention.

[0061] This is an image processing device in which a communication device 201, an image acquisition device 202, a display device 203, an external storage device 204, a memory 205, a CPU (Central Processing Unit) 206, and an input device 207 such as a keyboard or a mouse are connected by a communication line such as a PCI bus. 208.

[0062] figure 1 The shown program having the configuration of the specific object extraction process is stored in a storage device such as the external storage device 204 or the memory 205 , and is executed by the CPU 205 .

[0063] The color image or brightness image of the document input to the CPU may be input from the image acquisition device 202 such as a scanner or OCR or the communication device 201 , or may be stored in the external storage device 204 .

[0064] The results of the specific object extraction processing may be ...

Embodiment 2

[0107] like Figure 17 As shown, the specific object determination unit 104 may employ a specific object extraction process in which a specific object is determined only by estimating the color of the ruled line.

[0108] Figure 17 In the process shown, in the ruled line color estimation process 1701, only the color information of the ruled line is estimated by referring to the outline color conversion data. Then, in the ruled-line color part removal process 1702, the ruled-line color part is removed from the background removal data 605 by using the color information of the ruled line, and the written character part to be a specific object is discriminated.

Embodiment 3

[0110] like Figure 18 As shown, in the specific object determination unit 104, a specific object extraction process for performing specific object determination processing only by estimating the color of the specific object may be employed.

[0111] Figure 18 In the process shown, in the specific object color estimation process 1801, only the color information of the specific object candidate is estimated with reference to the outline color conversion data 1303. Then, in the extraction process 1702 of the color part of the specific object, the written character part to be the specific object is extracted from the background removal data 605 using the color information of the specific object.

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PUM

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Abstract

The invention provides an image processing program and an image processing device, recorded words, prints, marks and the like are extracted in a high accuracy from document images comprising color bias or fuzzy color. The image processing method of the invention is composed of: a background removing and data generating part for removing background parts from the color images or bright images, generating, and generating the background removing data which represents the parts other than the background; a profile color converting and data generating part for, in the parts other than the background in the color images or bright images, generating the data which converts the profile color of the parts other than the background into pixel color at inner side of the profile of the parts other than the background.

Description

technical field [0001] The invention relates to an optical character reading device (OCR: Optical Character Reader), a scanner, a digital camera, etc. to photograph documents such as accounts, and extract images of specific objects such as characters, imprints, marks, etc. from the generated document images. A processing method and an image processing device. Background technique [0002] In financial institutions and local governments, scanner devices such as OCR are used to improve the efficiency of document processing operations such as forms. The main functions of OCR are the generation of document images, the extraction of text in document images, and the recognition of text. The types of document images to be generated include binary images, luminance images, and color images. [0003] Processing using binary images reduces the processing time due to the small amount of data. However, in binary image processing, there is a large overlap between ruled lines, bit line...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/34G06K9/20G06K9/72
CPCG06T7/254G06T7/90G06V10/273G06V10/25
Inventor 关峰伸浅野英辅永吉洋登永崎健新庄广
Owner HITACHI OMRON TERMINAL SOLUTIONS CORP
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