当实行降采样后，某些图像点的数据会丢失。该算法可以通过一些插值算法得到所需的数据。-While interpolation functions are available builtin in MATLAB, it require data in specified griddata format. Consider sampling data from an experiment and you are missing some points and you don t want to rep

双线性插值,完成图像的上采样过程，使得图像不丢失太多的精度-Bilinear interpolation, an image on the sampling process is completed, so that the image is not lost too much precision