主要介绍了使用harr小波进行图像压缩的原理和方法。通过使用小波变换，实现DC和AC的区分与解交织。-Introduces harr wavelet for image compression theory and methods. By using wavelet transform, to achieve the distinction between DC, and AC mixed with the solution.

图像尺度为2的全分解小波包，Harr小波变换，一个主程序，两个附程序。-2 full-scale image wavelet packet decomposition, Harr wavelet transform, a main program, two additional programs.