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Texture
计算四个方向的灰度共生矩阵,将其作为纹理特征,是一种纹理特征提取算法。(Calculation of the four directions of Gray Level Co-occurrence matrix as texture features, is a kind of texture feature extraction algorithm.)
- 2008-03-11 19:51:54下载
- 积分:1
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matlab
zemax非序列下gaussian光束的matlab程序(包括zemax演示源文件)(zemax sequence under non-gaussian beam matlab program (including zemax demo source files))
- 2013-09-25 15:25:18下载
- 积分:1
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FAST-ICA
1、对观测数据进行中心化,;
2、使它的均值为0,对数据进行白化—>Z;
3、选择需要估计的分量的个数m,设置迭代次数p<-1
4、选择一个初始权矢量(随机的W,使其维数为Z的行向量个数);
5、利用迭代W(i,p)=mean(z(i,:).*(tanh((temp) *z)))-(mean(1-(tanh((temp)) *z).^2)).*temp(i,1)来学习W (这个公式是用来逼近负熵的)
6、用对称正交法处理下W
7、归一化W(:,p)=W(:,p)/norm(W(:,p))
8、若W不收敛,返回第5步
9、令p=p+1,若p小于等于m,返回第4步
剩下的应该都能看懂了
基本就是基于负熵最大的快速独立分量分析算法(1, on the center of the observation data, 2, making a mean of 0, the data to whitening-> Z 3, select the number of components to be estimated m, setting the number of iterations p < -1 4, select an initial weight vector (random W, so that the Z dimension of the row vectors of numbers) 5, the use of iteration W (i, p) = mean (z (i, :).* (tanh ((temp) ' * z)))- (mean (1- (tanh ((temp)) ' * z). ^ 2)).* temp (i, 1) to learn W (This formula is used to approximate the negative entropy) 6 with symmetric orthogonal treatments W 7, normalized W (:, p) = W (:, p)/norm (W (:, p)) 8, if W does not converge, return to step 5 9 , so that p = p+1, if p less than or equal m, return to step 4 should be able to read the rest of the basic is based on negative entropy of the largest fast independent component analysis algorithm)
- 2013-06-27 15:39:00下载
- 积分:1
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CT256
该上传的256张CT图片是高质量的DICOME格式人类头骨的连续序列切片图,可直接用于医学三维重建或体绘制。(The upload of 256 CT images are of high quality DICOME form a continuous sequence of the human skull slice diagram can be directly used in medical 3D reconstruction or volume rendering.)
- 2010-03-06 18:50:45下载
- 积分:1
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work
一种基于DCT变换的数字水印算法的实现过程,水印为伪随机序列,包括嵌入和提取两个过程。其中textmark.m为攻击实验代码。(DCT-based Digital Watermarking Algorithm Transform realize the process, the watermark for the pseudo-random sequence, including both the process of embedding and extraction. Textmark.m experiment in which the attack code.)
- 2008-04-11 09:28:18下载
- 积分:1
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demo_ASIFT_Win
ASIFT图像特征提取源代码,有测试图片和demo(ASIFT image feature extraction source code, test images and demo)
- 2013-01-22 16:54:42下载
- 积分:1
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LevelSetMethods
医学图像分割水平及方法理论书籍《Level Set Methods and Dynamic Implicit Surfaces》代码(Medical image segmentation level of theory and methodology of the book )
- 2021-02-16 11:49:47下载
- 积分:1
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EEMD
信号进行EEMD分,作为希尔伯特黄变换的基础(try to decompose signal using EEMD,which as the Hilbert Huang Transtion basis)
- 2012-10-21 21:34:14下载
- 积分:1
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6s
说明: 遥感图像运用6S工具来进行大气辐射校正处理(Atmospheric Radiation Correction Processing Using 6S Tool for Remote Sensing Images)
- 2019-06-20 18:12:10下载
- 积分:1
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sarImagingSimu
说明: sar成像算法:RD、CS算法,希望对需要的人有用(sar imaging algorithm: RD, CS algorithm, and they hope to those who need it useful)
- 2008-12-05 13:39:08下载
- 积分:1