dwt_watremark

[视频]Matlab GUI视频(六)_ 读取Excel 文件 - Matlab 视频教学 - Matlab中文论坛 _ Simulink 论坛 _ Matlab([Video] Matlab GUI video (f) _ read Excel file- Matlab video teaching- Matlab中文论坛_ Simulink Forum _ Matlab)

anroid手机中BMI值计算，对于初学者而言是个不错的案例(anroid phone BMI values, for the beginner is a good case in terms of)

simulink中的模块中中英文对照，十分详细，各个模块都有(The Chinese and English versions of the module simulink, very detailed, each module)

说明：  不同模态OAM的相位图，电场场强图，及用箭头表示相位变化。(Phase diagram, electric field strength diagram of OAM with different modes and phase change indicated by arrows.)

说明：  本文提出了一种基于混沌加密的DCT域二值图像数字水印算法.该算法首先利用混沌序列将含有版权信息的有意义二值图像水印进行加密,然后利用人眼视觉系统(HVS)的特性将原始载体图像进行块分类,最后将不同强度的水印分量嵌入到不同类的图像块DCT中频系数中去.利用混沌序列对水印进行加密,使水印本身具有安全性,对数字作品进行双重保障.通过高斯噪声,椒盐噪声以及JPEG压缩和剪切等攻击试验,表明了该算法具有较好的鲁棒性.(Encryption in DCT domain is proposed. Firstly, the meaningful binary image watermark containing copyright information is encrypted by using chaotic sequence, and then the original image is classified by using the characteristics of human visual system (HVS), Finally, the watermark components with different intensities are embedded into the DCT intermediate frequency coefficients of different types of image blocks. Chaotic sequences are used to encrypt the watermark, so that the watermark itself has security and double protection for digital works. Experiments on Gaussian noise, salt and pepper noise, JPEG compression and clipping show that the algorithm has good robustness)

这是一个用来对超声图像进行滤波的算法，是我按照论文自己编的，效果与论文中的一样。是stick filter。(This is the one used on the ultrasound image filtering algorithm is in accordance with papers their own series, the effect paper. Stick the filter.)

永磁同步发电机的控制simulik仿真图，与电网相连(Control simulik simulation diagram of permanent magnet synchronous generator connected to the grid)

《高等非线性动力学》-庞克来映射-相轨迹的源程序，怎么利用程序求解并画图(" Higher nonlinear dynamics" - punk to map- phase trajectory of the source, and how to use drawing program for solving)

几个有关通信系统的matlab程序,有关信号，包含：a,对抽样频率为90kHz的信号进行下抽样抗混叠滤波器设计的程序，b,信号抽样率转换的程序，c,通过补零内插对信号进行下抽样，分析抽样对信号频谱的影响的程序(Some matlab programs about communiction system,mainly about signal,a,program about filter to signal sampling without aliasing ,b,transfering signal sampling rate,c,zeros-added sampling,with its influence of phase-frequency。)

是一个关于正交匹配（omp）算法实现的程序(Is a match on the orthogonal (omp) algorithm procedure)