Corrosion image binarization processing method

A technology of image binarization and processing method, which is applied in the field of corrosion of metal materials to achieve the effect of accurate processing and noise reduction

Pending Publication Date: 2019-04-19
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a corrosion image binarization processing method to solve at least one problem existing in the prior art

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Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application. Embodiments of the present application will be described in detail below in conjunction with th...

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Abstract

The invention belongs to the field of metal material corrosion, and particularly relates to a corrosion image binarization processing method. The method comprises the following steps: 1, treating a test piece; 2, observing and shooting a corrosion pit microscopic topography map of the test piece through a video microscope; Step 3, reading the corrosion pit microscopic topography map of the test piece, and preprocessing the corrosion pit microscopic topography map by adopting a binarization method to generate a basic corrosion topography grey-scale map; 4, reading the basic corrosion morphologygrey-scale map, and processing the basic corrosion morphology grey-scale map by adopting an improved Otsu algorithm to generate a binary image; Wherein the improved Otsu algorithm is an Otsu algorithm in which edge information and gray scale information of the basic corrosion morphology gray scale map are added. The improved Otsu algorithm is adopted to further carry out binarization processing on the image, so that the corrosion morphology in the corrosion image can be better restored, the image processing is more accurate, noise points are reduced, and many interference factors in the original corrosion morphology grey-scale map are eliminated.

Description

technical field [0001] The application belongs to the field of metal material corrosion, and in particular relates to a method for binary processing of corrosion images. Background technique [0002] Different from the focus of real-time corrosion detection, corrosion images are often used in the laboratory to evaluate the degree of corrosion to obtain evaluation parameters such as corrosion rate. The research on corrosion image processing technology is closely related to the accuracy of corrosion diagnosis and evaluation using corrosion images. The corrosion information conveyed by an unprocessed original corrosion image may be unclear and ambiguous, and various parameters obtained after direct analysis will have large errors with the actual corrosion conditions. [0003] Image binarization is a basic technology in image processing, and it is also the preprocessing process of many image processing technologies. However, the existing binarization methods have disadvantages...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06T7/136G06T7/62
CPCG06T5/002G06T7/0004G06T7/136G06T7/62G06T2207/30136G06T2207/10056
Inventor 穆泉旭郑笑宇张伟宁许平郑涵天王钦李鹏飞都泽鑫
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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