An adaptive fuzzy c-means clustering noise image segmentation method and system
A technology of adaptive blurring and mean clustering, applied in image analysis, image enhancement, image data processing and other directions, can solve the problems of difficult parameter selection, inflexible methods, and impact of segmentation effects, so as to reduce the number of iterations and achieve accuracy. and flexibility, the effect of improving segmentation efficiency
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example 1
[0075] like figure 2 As shown, the image segmentation steps are as follows:
[0076] Step 1: Input the noise image, the noise image such as image 3As shown in (a), the noise image is a fingerprint image (798×958 pixels in size) with mixed noise added. First, the image is normalized to the range of [0,1], and then the standard deviation of the noise component is 0.15. Gaussian white noise, salt and pepper noise with a density of 0.15, and mean noise with a standard deviation of 0.15. The experimental parameters are set as follows: the total number of clusters K = 2, the membership weight index m = 2, the error ε = 0.001, a very small number eps=0.000001, geometric distribution σ d = 3.0 and the luminosity distribution σ r =6.0;
[0077] Step 2: According to the geometric distribution σ d and the luminosity distribution σ r , apply a fast bilateral filter to obtain a filtered image, where the fast bilateral filter is:
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[0080] Among them, δ(ζ-i ...
example 2
[0106] Segment the street noise image using the same steps as in Example 1. The street noise image is a street image with mixed noise (506×507 pixels in size), first normalize the image to the [0,1] range, and then add Gaussian white noise with a standard deviation of 0.15 of the noise component, and the density is Salt and pepper noise of 0.15 and mean noise with standard deviation of 0.15, the experimental parameters are as follows: the total number of clusters K = 2, the membership weight index m = 2, the error ε = 0.001, the small number eps = 0.000001, the geometric distribution σ d = 6.0 and the luminosity distribution σ r = 12.0. like Figure 5 (a).
[0107] Figure 5 (b) is the manually segmented reference image, Figure 5 (c) is the image segmentation result obtained by the traditional FCM clustering method, Figure 5 (d) is the image segmentation result obtained by the method provided by the present invention, from Figure 5 (c) It can be seen that in the segm...
example 3
[0113] Using the same steps as in Example 1, Figure 7 (a) Divide. Figure 7 (a) is an artificial grayscale image (700×700 pixels in size), first normalize the image to the range of [0,1], then add Gaussian white noise with a standard deviation of 0.15 and a density of 0.15 The salt and pepper noise and the mean noise with a standard deviation of 0.15, the experimental parameters are as follows: the total number of clusters K = 3, the membership weight index m = 2, the error ε = 0.001, the small number eps = 0.000001, the geometric distribution σ d = 3.5 and the luminosity distribution σ r = 3.0. The target is divided into three types of regions, namely background, hub and rim.
[0114] from Figure 7 (c) It can be seen that the traditional FCM clustering segmentation results are not visually different from the original noise image due to noise interference. Figure 7 (b) For comparison, there is a serious mis-segmentation of pixels, and from Figure 7 (d) The segmentati...
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