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matlab code of watermarking

This tutorial starts with a simple conceptual model of an analog Phase-Locked Loop (PLL). Through elaboration it ends at a model of an all digital and fixed-point phase-locked loop. The final model can serve a starting point for code generation (both ANSI C or synthesizable HDL). The step-wise elaboration of the model illustrates how Simulink® forms the basis a model-based design where continuous verification of the model reduces errors.

说明：  可变窗宽短时付氏变换算法数字信号时频分析m文件(Variable window width STFT m-files for JTFA)

一种系统辨识方法。对汉默斯坦ARX模型未知参数的系统辨识(Hammerstein MISG algorithm for Hammerstein ARX models)

白噪声过程的功率谱 自相关函数和功率谱(The power spectrum of the white noise process autocorrelation function and power spectral)

matlab实现语音信号计算其信噪比，其中包括一个原始语音文件。(matlab，calculate the SNR of a speech)

直方图均衡化，数字图像处理，简单matlab函数(Histogram equalization, digital image processing, a simple matlab function)

A fingerprint recognizing system is built with two principal components: the fingerprint admin istrator and the fingerprint recognizer. Fingerprints are identified by their special features such as ridge endings, ridge bifurcation, short ridges, and ridge enclosures, which are collectively called the minutiae.

利用DFT变换实现数字水印的源代码，请大家赐教··(the code about the digital watermark in the region of DFT，using matalab)

This is an image segmentation file.