Fuzzy cluster SAR image segmentation method based on Gamma distribution
An image segmentation and fuzzy clustering technology, applied in the field of image processing, can solve problems such as the inability to solve the SAR image segmentation problem, and achieve the effects of improving fitting and segmentation accuracy, fast convergence speed, and good stability.
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[0039] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0040] A fuzzy clustering SAR image segmentation method based on Gamma distribution, such as figure 1 shown, including the following steps:
[0041] Step 1: read the SAR image to be segmented;
[0042] In this embodiment, the SAR image domain to be segmented is defined as X={x 1 ,...,x i ,...,x N}, where x i is the grayscale measure of the i-th pixel, i is the pixel index, N is the total number of pixels, X is 128×128 pixels, and the total number of pixels is N=16384.
[0043] Step 2: The gray value of each pixel of the SAR image to be segmented is used as a sample point to construct an FCM objective function with a Gamma distribution function. The objective function aims to overcome the influence of noise in the SAR image on the SAR image segmentation result. The gray distribution obeys the Gamma distribution, and the neg...
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