Traditional Culture Encyclopedia - Traditional virtues - What is image segmentation?
What is image segmentation?
Image segmentation is widely used, including medical image analysis, remote sensing image processing, target detection and recognition, machine vision and so on.
Some common image segmentation methods include threshold-based segmentation, edge-based segmentation, region-based segmentation and specific theory-based segmentation. These methods can choose the appropriate segmentation algorithm according to the characteristics of the image.
In threshold-based segmentation, we divide the image into target area and background area according to the gray value of pixels. In edge-based segmentation, we use the edge information of the image to divide the image into multiple regions. In region-based segmentation, we divide the image into multiple regions according to the similarity between pixels. In the segmentation based on a specific theory, we use a specific theoretical model or algorithm to segment the image.
In addition to the above-mentioned common segmentation methods, there are many other image segmentation algorithms, such as K-means clustering, region growing and level set method. These algorithms can choose appropriate segmentation methods for different application scenarios.
Generally speaking, image segmentation is a very complicated problem, which requires comprehensive consideration of many factors, including image characteristics, selection of segmentation algorithms, application scenarios and so on.
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