重采样操作包括缩放、旋转和拉伸等变换，通常的重采样分为下采样、插值、上采样三个基本过程，此程序为重采样的matlab实现-Resampling operations include scaling, rotation and stretching transforms the usual resampling into down-sampling, interpolation, sampling on three basic processes, resampling procedure for the realization of matlab