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snr calculation based on FFT

基于matlab写的一个道路障碍物识别，可检测道路障碍物，利用数字图像处理相关知识，如平滑，边缘检测等(Based on MATLAB write a road obstacle identification, can detect road obstacles, the use of digital image processing related knowledge, such as smooth, edge detection, etc.)

卡尔曼滤波,用于加深理解卡尔曼滤波器的设计并认识扩展卡尔曼滤波器EKF和无损变化滤波器的优点(kalman filter，EKF and UKF)

《Matlab遗传算法工具箱及应用》这本书附带的的源码( Matlab genetic algorithm toolbox and its application, attached to this book s source code)

快速ICA算法的matlab程序编写，提供完整的快速独立主元分析方法。(Fast ICA algorithm matlab programming, provide a complete fast independent component analysis method.)

说明：  用MATLAB编写的人工鱼群算法的源代码。供大家学习(Prepared with artificial fish school algorithm MATLAB source code. For them to learn)

Matlab教程第六章案例，时间序列分析与计量(Matlab Guide Chapter cases, time series analysis and measurement)

基于二元系的wilson能量参数的拟合，用于求算二元系的活度系数。(wilson model energy function fitting)

稀疏傅里叶变换实现的文档，文档包含描述文件、输入参数、功能和运行测试的例子。(A documentation of the Sparse Fast Fourier Transform (SFFT 1.0/2.0) C++ implementation. The documentation includes a description of the files, the input parameters, the functions and examples of run tests.)

说明：  In this paper, a new scaling-based image-adaptive watermarking system has been presented, which exploits human visual model for adapting the watermark data to local properties of the host image. Its improved robustness is due to embedding in the low-frequency wavelet coefficients and optimal control of its strength factor HVS point of view. Maximum-likelihood (ML) decoder is used aided by the channel side information. The performance of the proposed scheme is analytically calculated and verified by simulation. Experimental results confirm the imperceptibility of the proposed method and its higher robustness against attacks compared to alternative watermarking methods in the literature