sparse-frequency-decomposition

利用遗传算法来进行图像分割的例子，非常好用。(the use of genetic algorithms for image segmentation example, very handy.)

自己用的时域特征提取方式，包含均值，均方根值，歪度，峭度，峰值指标，阈值裕值指标，峭度指标等，然后用RBF做聚类(The method of feature extraction in time domain includes mean value, root mean square value, skewness, kurtosis, peak value index, threshold margin index, kurtosis index, etc. Then RBF is used for clustering.)

该函数对整幅图像的背景亮度比较低的时候有效果；当背景亮度变大时，该函数失效(license plate location)

端点检测就是检测语音是否进入语音段，而不是还停留在静音段。(It can help you judge a voice record if it has gone to the necessary place.)

该程序主要是比较对信号分别进行希尔伯特变换HT和广义希尔伯特变换GHT所得到瞬时相位的比较，结果证明GHT较HT对信号有较好抗噪特性，同时瞬时相位也可以用来重构信号，但主要起了指示的作用。(We can get instantaneous phase of the signal by HT or GHT，and the results prove that GHT has better noiseproof feature,namely robustness than HT.In the meantime,we could restruct signal using the information of instantaneous phase,but it mainly has good directives roles.)

该MATLAB程序实现了simplex迭代算法，该算法可以在不对目标函数求导情况下进行优化，适合数据量较大的算法优化。(The MATLAB program to achieve a simplex iterative algorithm, which can be optimized in the right objective function derivation, the large amount of data suitable algorithm optimization.)

说明：  说话人识别的matlab实现，供大家参考(tell the speaker s voice)

MATLAB GUI设计学习手记（第二版）源程序 第7章 本书推荐的学习方法： 1）若您是一个MATLAB初学者，且有充裕的时间来学习GUI设计，您可以从本书的第1章开始循序渐进地学习。 2）若您是一位MATLAB初学者，且时间非常紧迫，建议您先学好第1章，然后依次学习第4章、第5章和第6章，其他章节请根据项目需要有选择性地学习。 3）若您已经掌握了MATLAB的基础语法知识，有一定的MATLAB编程基础，也请浏览一下第1章的内容，尤其是专题分析部分。然后先学习本书第4、5和6章，其他章节请根据项目需要有选择性地学习。 4）若您是一位MATLAB GUI方面的专家或老师，您可以将本书作为一本教学的参考书，本书内容全面、讲解详实、代码精炼，是不可多得的GUI宝典。 (MATLAB GUI design learning Hearts (second edition) Chapter 7 book recommended source learning methods: 1) If you are a MATLAB beginners, and there is plenty of time to learn GUI design, you can start from Chapter 1 of the book The step-by-step learning. 2) If you are a MATLAB beginners, and the time is very tight, it is recommended that you first learn to Chapter 1, followed by learning Chapter 4, Chapter 5 and Chapter 6, in other sections based on project needs selective learning . 3) If you have mastered the basic grammar of the MATLAB, the MATLAB Programming Fundamentals, please visit the Chapter 1, in particular thematic analysis section. First learning book chapters 4, 5 and 6, then the other chapters selective learning based on project needs. 4) If you are an expert or teacher of a MATLAB GUI, you can book as a teaching reference books, the book is comprehensive, explain the detailed, refined code, is a rare GUI canon.)

说明：  基于小波变换的数字图像水印算法研究的论文(Wavelet-based Digital Image Watermarking Algorithm papers)

画出数据的histtogram频率分布图及其概率密度函数，其中概率分布图的小区间范围以及整个数据区间的范围均可调(Plot the histtogram and probability density function (PDF) of statistic data which the whole range and subrange of the plot can be adjusted.)