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threshold is a key technique for the segmentation and edge detection in an image for image processing. Here in this file the threshold is on the based of the maximum entropy of an image using shannon entropy method.

图像采样，图像二值化，计算图像噪声水平，包含Matlab源代码(Sampling the image, binarizing the image, calculate the image noise level,include code)

Matlab图像处理实例详解第五章源码，欢迎大家下载学习，很好很强哟！！(Detailed examples Matlab image processing source code chapter are welcome to download the study, very strong yo! !)

Harmony Search Optimization Algorithm

说明：  代码来自书籍：振动力学基础与MATLAB应用 振动力学案例：单自由度强迫振动(Vibration mechanics case: single degree of freedom forced vibration)

PCA主成分分析，是一种常用的基于变量协方差矩 阵对信息进行处理、压缩和抽提的有效方 法。 (PCA principal component analysis, is a common and effective method is based on the covariance matrix of variable information processing, compression and extracted.)

陈后金数字信号处理课件，很不错的，有助于学习(This is the ppt of digital signal processing of Chen Houjin. That is very useful for the students.)

该程序描述了一种椭圆拟合算法，能够有效拟合椭圆图形。(This file is a ellipse fitting algorithm.)

基于matlab的多孔算法，matlab，matcom(based on the porous Matlab algorithms, Matlab, matcom)

信号叠加单频噪声，并利用SMI算法在16个天线阵元数条件下计算阵列方向图(Superposition of single frequency noise signal, and the SMI algorithm using 16 antenna elements in a number of conditions calculated array pattern)