PCA-SIFT

1-32是：图形应用篇 33-66是：界面设计篇 67-84是：图形处理篇 85-100是：数值分析篇 (1-32 is: the application of articles 33-66 graphics is: interface design articles 67-84 is: graphics processing chapter 85-100 are: Numerical Analysis Section)

这是一个人脸检测程序，可以有效检测出图像边缘。(This is a face detection procedures can effectively detect Edge.)

数学形态学操作 数学形态学的基本运算 结构元素矩阵 膨胀运算 腐蚀运算 膨胀与腐蚀的对偶关系 开运算和闭运算 击中与击不中 形态学的基本应用 边缘提取 二值图像面积提取 二值图像的欧拉数 查找表操作 灰度形态学 (Mathematical morphology operations basic operations of mathematical morphology dilation operator structure element matrix erosion operator expansion and corrosion of the relationship between dual opening operation and closing operation with the strike did not hit in the basic application of morphological edge detection in binary image extracted area of binary image Euler number look-up table operation of gray-scale morphology)

说明：  基于人类视觉系统HVS的小波域数字图像水印 包含：嵌入、提取、分解、重构等(Based on human visual system HVS digital image watermarking in wavelet domain include: embedding, extraction, decomposition, reconstruction, etc.)

说明：  how to apply morphological operators on images

Laws纹理策度是用来进行纹理分割的程序,这种方法很有用.(Laws degree texture strategy are used for texture segmentation procedure, this method useful.)

能量检测法是一种比较简单的信号检测方法[1]， 属于信号的非相干的检测， 直接对时域信号采样值求模，然后平方即可得到；或利用FFT转换到频域，然后对频域信号求模平方也可得到。它无需知道检测信号的任何先验知识，对信号类型也不作限制。 实际上，能量检测是在一定频带范围内作能量积累，如果积累的能量高于一 定的门限，则说明信号的存在；如果低于一定的门限，则说明仅有噪声。能量检 测的出发点是信号加噪声的能量大于噪声的能量。能量检测方法对信号没有作任何假设，是一种盲检算法。 此代码“利用FFT转换到频域，然后对频域信号求模平方”方法来实现对用户的检测。(In fact, energy detection is used for energy accumulation in a certain frequency range. If the accumulated energy is higher than a certain threshold, the existence of the signal is indicated. If the threshold is lower than the threshold, then only noise is indicated. The starting point of energy detection is that the energy of signal plus noise is greater than that of noise. The energy detection method does not make any assumptions about the signal, and it is a blind detection algorithm. This code "converts the frequency domain into the frequency domain by FFT, then calculates the square of the square of the frequency domain signal" to realize the detection of the user.)

灰度图像直方图的计算，超级好用的啊，可以通过它获得图像的分形维数等等，内存小，功能大(Gray image histogram calculation, super nice ah, you can get through it the fractal dimension of the image, and so on, the memory is small, functional large)

能够绘制Bezier曲面，用matlab实现的，很实用，(Can draw Bezier surface, matlab implementation, very practical,)

说明：  一个很有用的Markov Decision Process matlab程序(a very useful Markov Decision Process procedures Matlab)