用matlab怎样实现图像的降采样？具体代码？

Question

如题所述

Answer 1

降采样就是隔行或隔列对图像进行采样呀！\r\nclc\r\nclear\r\nclose all\r\ndata=imread('X.bmp');\r\n[row,line]=size(data);\r\ndata_new=data(1:2:row);%隔两行采样\r\n%data_new=data(1:2:line);%隔两列采样\r\nimwrite(data_new,['directory\','filename']);