matlab获取图片的size属性，长宽

width=size(imread(‘文件名'),2)； %获取图像宽
length=size(imread(‘文件名'),1)； %获取图像长

g=imread(['D:\文件及下载相关\桌面\代码 - 副本\代码\Image\Set5\' Names{k}]);
g2=im2bw(g,0.5);
[dm,dn]=size(g2);

---

batchedge.m:

clear;clc;close all;
Files=dir('D:\文件及下载相关\桌面\代码 - 副本\代码\Image\Set5\*.bmp');
N=length(Files);
Names={};

for k=:N

        Names{k}=Files(k).name;
        g=imread(['D:\文件及下载相关\桌面\代码 - 副本\代码\Image\Set5\' Names{k}]);
        g2=im2bw(g,0.5);
        [dm,dn]=size(g2);
image_new=zeros(*dm,*dn);
for i=:*dm
    for j=:*dn
    %进行插值运算
    if (rem(i,)==)&&(rem(j,)==)
         image_new(i,j)=g(round(i/),round(j/));
        else image_new(i,j)=;
    end
    end
end

Ax=image_new;Ay=image_new;
gaosi=[-/ / / -/];
for  i=::*dm-
    for j=::*dn-
      x=[image_new(i-,j-) image_new(i-,j-) image_new(i+,j+) image_new(i+,j+)];
      y=[image_new(i+,j-) image_new(i+,j-) image_new(i-,j+) image_new(i-,j+)];
      Ax(i,j)=sum(x.*gaosi);
      Ay(i,j)=sum(y.*gaosi);
    end
end

for  i=::*dm-
    for j=::*dn-
        zx=[Ax(i-,j-) Ax(i-,j-) Ax(i,j) Ax(i+,j+) Ax(i+,j+)];
        zy=[Ay(i+,j-) Ay(i+,j-) Ay(i,j) Ay(i-,j+) Ay(i-,j+)];

        x=[image_new(i-,j-) image_new(i+,j+) image_new(i+,j-) image_new(i-,j+)];
        mx=mean(x);

        pzx=sum((zx-mx).^)/+0.1;
        pzy=sum((zy-mx).^)/+0.1; 

        wx=pzy/(pzx+pzy);wy=-wx;
        image_new(i,j)=wx*Ax(i,j)+wy*Ay(i,j);
    end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Ax=image_new;Ay=image_new;
for  i=::*dm-
    for j=::*dn-
      x=[image_new(i-,j) image_new(i-,j) image_new(i+,j) image_new(i+,j)];
      y=[image_new(i,j-) image_new(i,j-) image_new(i,j+) image_new(i,j+)];
      Ax(i,j)=sum(x.*gaosi);
      Ay(i,j)=sum(y.*gaosi);
    end
end

for  i=::*dm-
    for j=::*dn-
        zx=[Ax(i-,j) Ax(i-,j) Ax(i,j) Ax(i+,j) Ax(i+,j)];
        zy=[Ay(i,j-) Ay(i,j-) Ay(i,j) Ay(i,j+) Ay(i,j+)];

        x=[image_new(i-,j) image_new(i,j-) image_new(i+,j) image_new(i,j+)];
        mx=mean(x);

        pzx=sum((zx-mx).^)/+0.1;
        pzy=sum((zy-mx).^)/+0.1; 

        wx=pzy/(pzx+pzy);wy=-wx;
        image_new(i,j)=wx*Ax(i,j)+wy*Ay(i,j);
    end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Ax=image_new;Ay=image_new;
for  i=::*dm-
    for j=::*dn-
      x=[image_new(i-,j) image_new(i-,j) image_new(i+,j) image_new(i+,j)];
      y=[image_new(i,j-) image_new(i,j-) image_new(i,j+) image_new(i,j+)];
      Ax(i,j)=sum(x.*gaosi);
      Ay(i,j)=sum(y.*gaosi);
    end
end

for  i=::*dm-
    for j=::*dn-
        zx=[Ax(i-,j) Ax(i-,j) Ax(i,j) Ax(i+,j) Ax(i+,j)];
        zy=[Ay(i,j-) Ay(i,j-) Ay(i,j) Ay(i,j+) Ay(i,j+)];

        x=[image_new(i-,j) image_new(i,j-) image_new(i+,j) image_new(i,j+)];
        mx=mean(x);

        pzx=sum((zx-mx).^)/+0.1;
        pzy=sum((zy-mx).^)/+0.1; 

        wx=pzy/(pzx+pzy);wy=-wx;
        image_new(i,j)=wx*Ax(i,j)+wy*Ay(i,j);
    end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
figure;
image_new=uint8(image_new);

        image_new=uint8(image_new);
        path='D:\文件及下载相关\桌面\代码 - 副本\代码\Image\Set5\';
        file=Files(k).name;
        pathfile=fullfile(path,file);
        imwrite(image_new,pathfile,'bmp');
end