co_matrix

fundamentals of cbir system...

Calculates the auto correlation

2篇比较经典的FMCW雷达合成孔径成像的文章(Two classic article FMCW radar synthetic aperture imaging)

针对滞后系统的大林算法，在matlab环境下进行的方针效果图，控制效果明显。(Dalin algorithm for delay systems, in principle under matlab environment effect diagrams, control effect is obvious.)

Instructor Manual for CPP How to Program

matlab时频分析配套源码第13章的程序，请大家共享(Matlab time-frequency analysis supporting source Chapter 13 procedures, please share)

消除50Hz工频干扰数字滤波器的设计,设计思路很巧妙，程序很小很好用(Eliminate the 50Hz frequency interference digital filter design, design ideas is very clever, good program is very small)

小波变换（wavelet transform，WT）是一种新的变换分析方法，它继承和发展了短时傅立叶变换局部化的思想，同时又克服了窗口大小不随频率变化等缺点，能够提供一个随频率改变的“时间-频率”窗口，是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征，能对时间（空间）频率的局部化分析，通过伸缩平移运算对信号（函数)逐步进行多尺度细化，最终达到高频处时间细分，低频处频率细分，能自动适应时频信号分析的要求，从而可聚焦到信号的任意细节，解决了Fourier变换的困难问题，成为继Fourier变换以来在科学方法上的重大突破。(wavelet transform)

说明：  Matlab的kmeans算法实现，有很详细得说明(Matlab)

提出了一种离散小波变换域实现图像水印的方法。这种算法充分利用小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同的频段来嵌入水印信息。该方法也利用了人眼视觉特性,算法简单而有效。实验证明,该算法较好地解决了水印不可见性与鲁棒性之间的矛盾,对常见的水印攻击都有较强的鲁棒性。(presents a discrete wavelet transform domain image watermarking method. This algorithm using wavelet transform characteristics, the original image and the watermark image tower decomposition, Multiresolution decomposition in the same frequency band to the embedded watermark. The method has also been used HVS, the algorithm is simple and effective. Experiments show that the algorithm can solve the watermark is visible with the robust nature of, common to have more attacks watermark robustness.)