Based on the study of image segmentation algorithm, this paper presents one kind of improved image segmentation algorithm by comprehensive using the Otsu method and the method based on fuzzy theory seeking image segment threshold. The method uses Otsu method, obtained by pre-segmentation threshold value; then the image is divided into target and background. At last we use fuzzy partition method for final segmentation threshold. The experimental results show that the method can keep a greater degree of image detail. Especially for low SNR images and poor contrast image, there is a relatively good result.
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