Crystal grain image edge connecting method and apparatus

Abstract

The invention relates to a crystal grain image edge connecting method. The method comprises the following steps: obtaining prestored first crystal grain binary image data; carrying out closed operation on the crystal grain binary image data so as to obtain second crystal grain binary image data with no breaking point exiting at a 0-degree direction, a 45-degree direction, a 90-degree direction, and a 135-degree direction; carrying out dilation operation on the second crystal grain binary image data so as to obtain third crystal grain binary image data without any breaking point; carrying out erosion operation on the third crystal grain binary image data so as to obtain fourth crystal grain binary image data; carrying out erosion operation on the third crystal grain binary image data so as to obtain fifth crystal grain binary image data; and carrying out AND operation on the fourth crystal grain binary image data and the fifth crystal grain binary image data so as to obtain crystal grain binary image data with edge connection. According to the method provided by the invention, the operation is simple; the operation speed is enhanced; and the method can be realized and popularized conveniently. In addition, the invention also provides a crystal grain image edge connecting apparatus.

Description

technical field [0001] The invention relates to morphological image processing, in particular to a grain image edge connection method and a device thereof. Background technique [0002] At present, the main idea of ​​the breakpoint growth method in image processing is: first judge and mark the breakpoint, then perform a heuristic search around each breakpoint, evaluate each point to be connected through various evaluation functions, and determine the best waiting point. Connect after join point. And usually the morphological edge connection method mainly expands and erodes the edge image through a single structure, so as to realize the edge connection. [0003] However, the conventional processing method has the following disadvantages: the common expansion-corrosion edge connection adopts a single structure, which easily leads to edge distortion; it needs to search and mark breakpoints, which reduces the running speed; it needs to be judged and optimized for breakpoint con...

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Problems solved by technology

[0003] However, the conventional processing method has the following disadvantages: the common expansion-corrosion edge connection adopts a single structure, which easily leads to edge distortion; it needs to search and mark breakpoints, which reduces the running speed; it needs to be judged and optimized for breakpoint connection, which reduces the running speed; The iterative structure of the program reduces the running speed; the programming is complicated

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