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脉冲编码调制（PCM）用于在数字传输媒体上传送模拟信号，在PCM中，首先对模拟信号以高于其带宽两倍的奈奎斯特率进行采样，然后对所得样本进行量化。采用不同量化级别生成的PCM编码会影响接收器重建模拟信号的质量。 (Pulse code modulation (PCM) for the media in the digital transmission of analog signal transmission in the PCM, the first analog signal to more than the Nyquist rate of twice the bandwidth sample, and then to quantify the samples. Using different quantization level generated PCM coding receiver will affect the quality of the reconstruction of analog signals.)

DCT数字水印算法的matlab实现，该程序反映了DCT算法的强健性和鲁棒性。(DCT watermarking algorithm of matlab, the program reflects the DCT robustness and robustness of the algorithm)

Color Image Enhancement Techniques: A Critical Review Abstract Image enhancement is one of the key issues in high quality pictures such as digital camera and HDTV. Since Image clarity is very easily affected by lighting, weather, or equipment that has been used to capture the image. These conditions lead to image may suffer from loss of information. As a result, many techniques have developed known as image Enhancement techniques to recover the information in an image. This paper presents a literature review on some of the image Enhancement techniques for color image enhancement like, Contrast Stretching, Histogram Equalization and its improvement versions, Homomorphic Filtering, Retinex, and Wavelet Multiscale Transform. Comparison of all the techniques concludes the better approach for its future research

终端EMV认证资料，包含四册，中文翻译版本(EMV terminal certification information, contains four, Chinese translated version)

matlab教程和例程，matlab时频分析一书中的工具箱，有两个这是其一。(matlab tutorial and routine, matlab frequency analysis book toolbox, two is one.)

Donoho经典阀值改进法进行小波去噪，matlab环境下编辑源代码程序(Donoho threshold improvement of classical wavelet denoising method, matlab source code editing environment procedures)

说明：  图像降维方法pca和kpca的matlab程序(Image dimensional reduction pca and kpca the matlab program)

实现循环卷积，个人觉得不错，传来大家一起分享！(convolution)

永磁同步电机无速度传感器仿真，电压模型法，大家交流一下，请赐教(Permanent magnet synchronous motors without speed sensor simulation, the voltage model method, we exchange, please enlighten me)

This matlab code helps to track color using matlab algortihm. this is a image processing programming code to develop automatic color detection applications.