本程序可以进行四次小波变化，并且可以今进行分形压缩。-the procedure for the Fourth wavelet change, and this can fractal compression.

给出了一种基于小波分形的图像有损压缩方法.首先，利用小波变换将图像分解为不同频率的分量，然后采用分形迭代函数系统、Huffman树等方法对它们进行编码.实验表明，该算法在保证还原图像质量的情况下，有较高的压缩比.-Image Compression Bassed on Wavelet and Fractal

Wavelet packet analysis to extract vibration signal characteristic frequency, Is a two hidden layer back propagation neural network, Fractal dimension calculation algorithm matlab code blankets.