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Speckle_reduction

于 2019-03-30 发布文件大小:706KB

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下载积分: 1 下载次数: 21

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代码说明：

用于SAR图像的相干斑抑制，内有增强Lee滤波，增强Kuan滤波，增强GammaMap滤波算法，还有等效视数，边缘保持指数的求法(For speckle suppression of SAR images, there are enhanced Lee filtering, enhanced Kuan filtering, enhanced GammaMap filtering algorithm, and the calculation of ENL and EPI.)

文件列表：

Speckle_reduction, 0 , 2019-03-30
Speckle_reduction\Speckle_reduction.m, 1123 , 2019-03-30
Speckle_reduction\codes, 0 , 2019-03-30
Speckle_reduction\codes\EnhancedGammaMap.m, 1181 , 2019-03-30
Speckle_reduction\codes\EnhancedKuan.m, 1153 , 2019-03-30
Speckle_reduction\codes\EnhancedLee.m, 1141 , 2019-03-30
Speckle_reduction\codes\estimate_EPI.m, 516 , 2019-03-30
Speckle_reduction\codes\estimate_L.m, 168 , 2019-03-30
Speckle_reduction\test images, 0 , 2019-03-30
Speckle_reduction\test images\SAR1.jpg, 65890 , 2014-03-19
Speckle_reduction\test images\SAR2.jpg, 46842 , 2014-03-19
Speckle_reduction\test images\SAR3.jpg, 23272 , 2014-03-27
Speckle_reduction\test images\SAR4.jpg, 589878 , 2019-03-23

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Desktop
说明：计算图像边缘保护指数EPI，需要原始图像与处理后图像(To calculate the EPI, the original image and the processed image are needed)

2020-06-10 17:11:28下载

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2016-03-17 11:06:34下载

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2020-12-11 15:39:18下载

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图像分割是把图像划分成具有实际意义的互补交迭的区域的集合。在图像分割之前，图像区域的数目未知，而在分割后各个区域同时满足均匀性和连通性的条件，故图像分割是一个复杂的过程，目前大多数研究都是针对某一类型图像或者某一具体应用的分割。图像阈值化分割的基本思想是确定一个阈值，然后把每个像素点的像素值和阈值相比较，根据比较的结果把像素划分为两类，前景(1)或背景(0)。该方法的关键是确定一个最优的阈值。常用的阈值确定方法有直接门限法、类间最大方差法(otsu法)、分水岭算法、最小误差法、最大熵法等。该段代码就是图像的阈值分割。(The image segmentation is divided into the practical significance of the emerging area of complementary set. In the image segmentation, before the number of image region, the unknown, and after each area in division at the same time satisfy the uniformity and connectivity condition, so the image segmentation is a complicated process now, most research are for a certain type image or a particular application of the division. Image threshold segmentation of the basic idea is to determine a threshold, then put each pixel threshold value of the pixels and compared, according to the result of the comparison the pixel divided into two categories, the prospect (1) or background (0). This method is the key to determine an optimal threshold. Commonly used method to determine the threshold value of direct threshold method, the largest of the variance between method (otsu method), watershed algorithm, the minimum error method, the maximum entropy method, etc. When the code is image threshold segm)

2011-11-14 21:10:46下载

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