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A Digital Image Processing Method for Objects with Irregular Contours

A digital image and processing method technology, which is applied in the field of digital image processing with irregular contours for objects, can solve problems such as large errors, low efficiency, and information distortion, so as to ensure high-precision acquisition, reduce manual errors, and improve work efficiency. Effect

Active Publication Date: 2021-07-30
SOUTHEAST UNIV
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Problems solved by technology

[0008] In view of the above existing problems, the purpose of the present invention is to provide a method that solves the problems of low efficiency, large errors, and information distortion in the prior art, so as to achieve efficient batch processing of digital images to obtain the spatial distribution information of image features. Digital Image Processing Method with Irregular Contour

Method used

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  • A Digital Image Processing Method for Objects with Irregular Contours
  • A Digital Image Processing Method for Objects with Irregular Contours
  • A Digital Image Processing Method for Objects with Irregular Contours

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Embodiment 1

[0037] Embodiment 1: as figure 1 , 2 A kind of target shown in , 3 and 4 has the digital image processing method of irregular outline, comprises as follows:

[0038] (1) Get the original image;

[0039] Such as figure 1 Shown is the raw SEM digital image of concrete at 500x magnification (pixel size 0.18 μm), the aggregate target has an irregular geometric profile, and the cement slurry matrix is ​​diffused with randomly distributed pores of different sizes;

[0040] (2) Preprocess the original image to determine the spatial coordinates of each point of the target contour line:

[0041] figure 2 Shown is the application of ImageJ software to preprocess the original digital image, that is, to set the gray value of the pixel in the target area (visible aggregate area) to the maximum value: 255, and then from the target area (visible aggregate area) to the target adjacent Scanning point-by-point in the area where aggregates are not seen, when the gray value of a scanning po...

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Abstract

The invention discloses a digital image processing method for an object with an irregular outline, which comprises the following steps: 1) acquiring an original image; 2) performing preprocessing on the original image to determine the spatial coordinates of each point on the outline of an object; For targets with irregular contours, the least squares method is used to fit and determine the coordinates of the center point of the target contour; 4) Based on the center point, the center point of the target contour is expanded-contracted, and parallel expansion-contracted bands are divided according to the actual required width and number; 5) Statistical image feature information in each expansion-contraction band; the present invention solves the problems of low efficiency, large error, and information distortion when the processing target has an irregular contour division expansion-contraction band in the prior art, thereby efficiently obtaining image features spatial distribution information.

Description

technical field [0001] The invention relates to a digital image information analysis technology, in particular to a digital image processing method aimed at targets with irregular contours. Background technique [0002] Digital image analysis technology is widely used in the research of composite materials science. Using high-power cameras, optical microscopes, electron microscopes, etc. to obtain digital images of composite materials at different scales, and to analyze the relationship between the structure and properties of composite materials has become a hot spot in the current research on composite materials. For composite materials, there is usually a so-called interfacial zone (Interfacial Zone) between different components, and the interface transition zone has a certain width and properties different from the matrix components, which has a great influence on the overall performance of the composite material. important influence. Efficient digital image processing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/60
CPCG06T7/60
Inventor 高云
Owner SOUTHEAST UNIV
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