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特征选择之relief-F的MATLAB实现
Relief-F 算法是由 Kononenko 在 Relief 算法基础上扩展得到的,可以用来解决多分类与回归问题。 Relief-F 特征选择算法利用特征与类别间的相关程度判别特征的敏感程度,敏感的特征能使同类样本靠近,非同类样本远离。基本思想是: 先随机从总样本集 D中获取一个样本 R, 然后在 与 R 同类样本集中和与R 异类 样 本 集 中 各 获 取 k 个近 邻 样 本, 在 特 征 集 F中如果某个特征上异类样本的距离大于同类样本,则这个特征是有利于分类的,增加其权重,重复 n 次 取所有结果的均值作为每个特征的最终权重值.
- 2020-11-29下载
- 积分:1
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DRLSEBasedMovingObjectSegmentation
一种基于改进DRLSE的运动目标分割方法,为了得到精准、连续的运动目标轮廓,提出将帧间差分法和改进的距离规则水平集演化(DRLSE)方法结合应用于运动目标分割。(In order to get an accurate and continuous contour of moving target, a novel method to segment moving object by combining the frame difference and an improved distance regularized level set evolution (DRLSE) is proposed. )
- 2014-10-29 19:37:10下载
- 积分:1
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IPM
能够将图像坐标转化为世界坐标,根据图像像素修改参数(Can transform image coordinates into world coordinates, and modify parameters according to image pixels.)
- 2017-07-01 08:12:14下载
- 积分:1
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arnold图像加密
基于arnold变换加密图像(带解密的代码),缺点是具有周期性(Encryption based on Arnold transform (with decryption code), the disadvantage is cyclical.)
- 2018-08-02 10:27:10下载
- 积分:1
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adaptivethreshold
用matlab实现不规则光照下自适应阈值的前景背景分离算法。文件里面附测试图像。(Matlab implementation to use irregular light of the prospects for adaptive threshold background separation algorithm. Test image files attached inside.)
- 2009-04-04 08:50:26下载
- 积分:1
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RBM
关于深度玻尔兹曼机的工具箱,可以进行图像的分类和识别。(About Deep Boltzmann Machine Toolbox,which you can use for image classification and identification.)
- 2014-05-28 20:11:57下载
- 积分:1
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image-fusion
基于低频融合策略的小波图像融合算法
,高频系数融合均采用基于像素点绝对值取大的规则(Wavelet image fusion algorithm based on low-frequency fusion strategy, integration of high-frequency coefficients are based on the absolute value of the pixel point to take a big rule)
- 2013-04-17 11:04:43下载
- 积分:1
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LBP特征提取
说明: LBP是一种用来描述图像局部纹理特征的算子;它具有旋转不变性和灰度不变性等显著的优点。(LBP is an operator used to describe local texture features of images; it has significant advantages such as rotation invariance and gray invariance.)
- 2019-07-08 08:43:38下载
- 积分:1
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count
统计图像中某区域在整个图像中所占的百分比.(comput the percentage of the gived area in the whole image)
- 2020-11-06 17:49:49下载
- 积分:1
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cfar_sarX_1
这是一个sar成像的算法,它融合了cfar的处理,使目标更加凸显。非常适合用于sar成像和cfar算法的研究。(This is a sar imaging algorithm, which combines cfar processing, the target is more prominent. Very suitable for research sar algorithm for imaging and cfar.)
- 2021-04-05 21:39:03下载
- 积分:1