说明：  图像压缩式图像应用技术的重要内容，代码主要实现图像压缩比的计算，使用行程长度编码对黑白图像进行编码、小波变换等
(The important content of the image compression image application technology, the code mainly realizes the image compression ratio calculation, use the stroke length encoding to carry on the black and white image to the black and white image, the wavelet transform and so on)