matlab彩色图像插值

clear;clc;close all;
Files=dir(‘D:\文件及下载相关\文档\MATLAB\postgraduate\Kodak\*.jpg‘);
N=length(Files);
Names={};

for k=1:N
    
        Names{k}=Files(k).name;
        RGB=imread([‘D:\文件及下载相关\文档\MATLAB\postgraduate\Kodak\‘ Names{k}]); 
       
        newimg = imresize(RGB,3);
        
        path=‘D:\文件及下载相关\文档\MATLAB\postgraduate\Kodak4\‘; 
        file=Files(k).name;
        pathfile=fullfile(path,file); 
        
        
        imwrite(newimg,pathfile,‘jpg‘);
end