包括最后计算压缩图像的峰值信噪比和压缩效果的源码,窗函数法设计一个数字带通FIR滤波器，时间序列数据分析中的梅林变换工具。- Including the final calculation of the compressed image peak signal to noise ratio and compression of the source, A window function design FIR digital band-pass filter, Time series data analysis Mellin transform tool.