a very handy code to compress color images using spiht algorithm with shape adaptive technique it is the original file no updates

a very handy code to compress color images using spiht algorithm with shape adaptive technique this version is been updated with some features of ROI

使用分层树集合划分的压缩方法对彩色图像压缩并计算其均方误差和峰噪比-Using a hierarchical tree set partitioning compression method for color image compression and calculate the mean square error and peak-to-noise ratio