IIP

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.)

对图像进行特征提取，求均值和方差来计算提取特征。(For image feature extraction, mean and variance to calculate the extracted features.)

逆透视变换的数学原理，在文档中有详细的逆透视变换的矩阵推导过程，但是没有代码，opencv逆透视变换代码可以看我发的另一篇资源。。。。。。。。。。。。。。。。。。(The mathematical principle of reverse perspective transformation, in the document there is a detailed matrix rendering process of the inverse perspective transformation, but there is no code, opencv reverse perspective transformation code can see another resource I sent)

对高光谱图像进行主成分分析，提取其中的主要信息(Hyperspectral images of the principal component analysis, extracting one of the main information)

jquery ui div的拖拽 克隆功能(JQuery UI drag and drop clone)

三视图，用二维图像显示三位图像，分主视图，俯视图，侧视图(view)

文本变图片源码例程,程序将文本转换到字节集数据，再取出每个字节数值进行计算后画到画板上。(After the text becomes image source routines , the program will convert the text to a set of bytes of data , and then remove each byte value is calculated to draw on the drawing board .)

自己编写的一个用于人脸识别2dpca程序，很好用的，里面有中文注释(I have written one for the face recognition 2dpca procedures, well used, which has Chinese Notes)

使用fdtd算法的人都知道这是初学fdtd的入门程序,很简单的程序但是能起到很重要的作用哦()

非常好的matlab检测圆形目标代码 希望能给大家带来一些帮助 喜欢的来下(Very good detection of circular object code matlab want to give you some help like to bring to the next)