image-blur

Multi-level discrete 2-D wavelet transform with the Cohen-Daubechies-Feauveau (CDF) 9/7 wavelet.

最近邻聚类算法，是经典的聚类算法，能够很好的实现，相信对大家有帮助(Nearest neighbor clustering algorithm)

for read and write multiple image

用于描述函数koch； koch分形曲线实例。(Used to describe the function koch koch fractal curve examples.)

说明：  函数运用基于DCT的正常化算法的图像的MATLAB程序(The function was applied to a wavelet-based image normalization algorithm.)

MATLAB,VB做成的神经网络计算程序(MATLAB, VB caused by the neural network program)

Iris recognition file

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

environmental sound classification

说明：  用MATLAB实现对一语音信号用不同小波进行分解，提取各层的高低频系数，画出各系数波形，并重构。(MATLAB voice signal to a different wavelet decomposition, from the high levels of low-frequency coefficients. he painted the waveform coefficients, and Reconstruction.)