Scanning picture matching method and device

A picture matching and picture technology, which is applied in the field of scanning picture matching methods and devices, and can solve the problems of low matching accuracy and low efficiency of scanned pictures.

Active Publication Date: 2013-02-06
HANVON CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a scanned picture matching method and device, which are used to solve the problem of low accuracy and low efficiency of scanned picture matching in the prior art

Method used

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  • Scanning picture matching method and device
  • Scanning picture matching method and device

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Embodiment Construction

[0027] Embodiments of the present invention provide a scanned image matching method and device, which can solve the problem of low accuracy and low efficiency of scanned image matching in the prior art.

[0028] The embodiment of the present invention provides a scanning picture matching method, such as figure 1 shown, including:

[0029] S201: Perform binarization processing on the scanned picture according to the color information of the scanned picture.

[0030] Wherein, the color information of the scanned picture includes: chroma, brightness (ie grayscale) or saturation, etc.

[0031] S202: Divide the binarized scanned picture into multiple pixel blocks, and perform an OR operation on the pixel values ​​corresponding to all pixels in each pixel block, and obtain the OR operation result of each pixel block to form the downsampling of the scanned picture picture.

[0032] Wherein, when setting the size of the pixel block, each pixel block may include 2×2 pixels, which is...

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PUM

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Abstract

The invention discloses a scanning picture matching method and a scanning picture matching device, which belongs to the field of image processing and are used for solving the problems of poor accuracy and low efficiency of scanning picture matching in the prior art. The scanning picture matching method comprises the following steps of: performing binarization processing on a scanning picture according to color information of the scanning picture; dividing the scanning picture subjected to binarization processing into a plurality of pixel blocks, and performing OR operation on pixel values corresponding to all pixels in each pixel block to obtain a lower sampling picture of the scanning picture, wherein the sampling picture is composed of OR operation results of each pixel block; dividing the obtained lower sampling picture into a plurality of pixel regions, and summing the OR operation results of all pixel points in each pixel region to obtain characteristic information of each pixel region forming the scanning picture; and further calculating similarity of the scanning picture and a picture to be matched, and judging whether the scanning picture is matched with the picture to be matched or not.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a scanning picture matching method and device. Background technique [0002] Because ancient paper documents are vulnerable to damage and loss, and computer storage can permanently store scanned images, more and more ancient documents are scanned and stored in computers. Moreover, not only ancient documents, but also many paper documents nowadays often need to be scanned and stored in the computer due to the consideration of convenient transmission and sharing. However, due to the integrity and continuity of the file itself, it is necessary to make repeated judgments on the scanned pictures, that is, to compare the similarity between the scanned pictures and the pictures already stored in the computer. If the similarity is too high, the scanned pictures will be considered Images are duplicated to reduce storage redundancy and inconvenience during review. [0003] For example, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/54
Inventor 黄磊任智杰
Owner HANVON CORP
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