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Document scanning processing apparatus and processing method

A technology for document scanning and processing equipment, which is applied in image data processing, instruments, calculations, etc. It can solve the problems of low contrast, image affine distortion, low brightness, etc., and achieve the effect of facilitating manual reading and later intelligent character detection

Active Publication Date: 2016-04-20
长沙天志智创电子科技有限公司
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AI Technical Summary

Problems solved by technology

[0011] Aiming at the deficiencies of the prior art, the present invention designs a document scanning processing device and processing method, and improves the defects of images such as affine deformation, inclination, low brightness, and low contrast in the document scanning process.

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  • Document scanning processing apparatus and processing method
  • Document scanning processing apparatus and processing method
  • Document scanning processing apparatus and processing method

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] Such as figure 1 The shown document scanning processing equipment has an embedded system, and the embedded system includes an ARM processor; it is connected with the ARM processor through a memory interface, and solidifies the DDR or NandFlash memory of the operating system and computer vision special function library ; Camera connected to ARM processor through I / O interface, SD card / CF card storage interface, USB interface, Ethernet and WIFI transmission interface.

[0036] The document scanning processing equipment adopts the embedded operating system based on the ARM kernel, such as WindowsCE, Windows10, Linux, Android, etc., and can transplant and install various computer vision libraries on the embedded operating system, such as OpenCV, HALCON, etc., to be more efficient Quickly operate the camera and perform image processing. Document scan proc...

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Abstract

The invention relates to a document scanning processing apparatus and processing method. The document scanning processing apparatus is provided with an embedded system. The embedded system includes a CPU, a DDR or NandFlash memory, a camera connected with the CPU through an I / O interface, an SD card / CF card storage interface, a USB interface and an Internet or WIFI transmission interface; the DDR or NandFlash memory is connected with the CPU through a memory interface; and an operating system and a computer vision dedicated function library are solidified in the DDR or NandFlash memory. The document scanning processing method includes the following steps that: an original color document image is obtained; the original color document image is grayed; matching enhancement is performed on the gray document image, so that an enhanced gray document image can be obtained; overall binarization is performed on the enhanced gray document image, so that a binarized document edge image can be obtained; the maximum contour and boundary points of an effective area are determined; affine restoration transform is performed on the original image; and histogram equalization is performed on an image obtained through the affine restoration transform, and contrast and brightness adjustment is carried out, so that an adjusted color document image can be obtained, and the adjusted color document image is transmitted through a USB, an Ethernet or WiFi, or is saved to an SD card or a CF card.

Description

technical field [0001] The present invention relates to a processing device and a processing method applied to document scanning, and in particular to a document scanning processing device which is improved for defects such as affine distortion, skew, low brightness, and low contrast in images during document scanning and processing methods. Background technique [0002] With the increasing electronicization of daily life and office environment, people will be faced with scanning a large number of paper documents and storing them in the computer, and document materials are scanned and stored in the computer, which makes the storage, transmission and management of documents more convenient. Quick and standard. Electronic document storage and backup have been gradually popularized in intelligence and information departments, financial departments, file management departments and other industrial and commercial enterprises. In the prior art, since the placement of the documen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/00
CPCG06T3/147
Inventor 张伟伟童睿李春勇
Owner 长沙天志智创电子科技有限公司
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