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PCA
主成分分析 （ Principal Component Analysis ， PCA ）或者主元分析。是一种掌握事物主要矛盾的统计分析方法，它可以从多元事物中解析出主要影响因素，揭示事物的本质，简化复杂的问题。计算主成分的目的是将高维数据投影到较低维空间。给定 n 个变量的 m 个观察值，形成一个 n ′ m 的数据矩阵， n 通常比较大。对于一个由多个变量描述的复杂事物，人们难以认识，那么是否可以抓住事物主要方面进行重点分析呢？如果事物的主要方面刚好体现在几个主要变量上，我们只需要将这几个变量分离出来，进行详细分析。但是，在一般情况下，并不能直接找出这样的关键变量。这时我们可以用原有变量的线性组合来表示事物的主要方面， PCA 就是这样一种分析方法。(Principal component analysis (Principal Component Analysis, PCA) or PCA. Is a statistical method to grasp the principal contradiction of things, it can be resolved diverse things out the main factors, revealing the essence of things, simplifying complex problems. The purpose of calculating the main component of high-dimensional data is projected to a lower dimensional space. Given n variables of m observations, forming an n ' m of the data matrix, n is usually large. For a complex matters described by several variables, it is difficult to know, so if you can grab something to focus on key aspects of analysis? If the main aspects of things just reflected on several key variables, we only need to separate out these few variables, for detailed analysis. However, in general, does not directly identify this critical variables. Then we can represent the major aspects of things with a linear combination of the original variables, PCA is one such analysis.)
- 2021-01-28 21:48:40下载
- 积分：1
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cxysplitter_project
在对话框中实现splitter(achieve splitter)
- 2004-10-18 20:35:34下载
- 积分：1
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dakedwt1
数字水印技术攻击试验，实现噪声、滤波、剪切、压缩、旋转攻击(Digital Watermarking attack test, realize noise, filtering, shear, compression, rotation attack)
- 2020-07-02 18:20:01下载
- 积分：1
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rainremove
说明： 一个去除恶略天气状况的去噪程序，可以去除大雨中的雨点，还原原图像(A slightly weather conditions to the evil forces of the de-noising procedure, can remove heavy rain in the rain, to restore the original image)
- 2008-08-27 10:45:52下载
- 积分：1
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LBP算法程序
MATLAB提取LBP纹理特征源码，可以使用(extract LBP texture features source code in MATLAB, you can run this program directly)
- 2021-04-14 09:08:55下载
- 积分：1
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JSteg
JSteg隐写技术matlab实现代码--基本思想：用秘密信息比特直接替换JPEG图像中量化后DCT系数的最低比特位，但若量化后DCT系数为0或者1，则不进行处理。（DCT系数的LSB嵌入）
(JSteg steganography matlab code- the basic idea: direct replacement with the secret information bits JPEG image quantized DCT coefficients in the least significant bit, but if the quantized DCT coefficient is 0 or 1, no processing. (DCT coefficients LSB embedding))
- 2020-12-21 15:59:09下载
- 积分：1
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75448137OpenSURF_Matlab
这是一种实现数字图像拼接的surf算法的matlab程序，能够取得不错的效果。(This is a digital image mosaic surf algorithm matlab program, can achieve good results.)
- 2021-04-29 15:48:42下载
- 积分：1
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bp-vision-master
说明： 置信度传播立体匹配，matelab就能运行，比较简单
1、需要Matlab 2013a及以上版本；
2、运行demo_stereo.m，注意修改图片路径；
3、左右图像使用3通道灰度图；(Confidence propagation stereo matching, MATELAB can run, relatively simple
1. Matlab 2013a and above is required;
2. Run demo_ Stereo. M, pay attention to modifying the image path;
3. The left and right images use 3-channel gray-scale images)
- 2020-06-04 14:53:27下载
- 积分：1
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codk__list__shaking
BTC的基本方法,并且编程实现,显示,观察编码后的图像,推荐给大家(BTC basic method and programming implementation, display, observe the encoded image, recommend to everyone)
- 2017-07-31 05:03:44下载
- 积分：1
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cubicSpline_main
说明： 三次样条插值函数，分别是基于二阶导数的和一阶导数实现的(Cubic spline interpolation function)
- 2020-12-30 10:39:28下载
- 积分：1
