Matlab实现将一副彩色扩展黑边

 1 clear;
 2 filenames = dir('E:\file');
 3 N = length(filenames);
 4 j=0;
 5 for i=1:N
 6     [path,name,ext] = fileparts(filenames(i).name);
 7     if strcmp(ext,'.jpg') == 1
 8        
 9         imagedir = strcat('E:\王琳-04-25(new)\MindFind\MindFind\frame\',filenames(i).name);
10         name = filenames(i).name;
11         I = imread(imagedir);
12         [m,n] = size(I);
13        if m==256 && n== 384*3
14            i
15           I = imresize(I,[NaN 300]);
16           R = I(:,:,1);
17           G = I(:,:,2);
18           B = I(:,:,3);
19           [M,N] = size(R);
20           K=double(R);
21           for i=1:300
22               for j=1:300
23                   if (i>50)&&(i<=50+M)
24                       C(i,j) = K(i-50,j);
25                   else
26                       C(i,j) = 0;
27                   end
28               end
29           end
30          C = uint8(C);
31           
32           L=double(G);
33           for i=1:300
34               for j=1:300
35                   if (i>50)&&(i<=50+M)
36                       D(i,j) = L(i-50,j);
37                   else
38                       D(i,j) = 0;
39                   end
40               end
41           end
42             D = uint8(D);
43             
44           T=double(B);
45           for i=1:300
46               for j=1:300
47                   if (i>50)&&(i<=50+M)
48                       E(i,j) = T(i-50,j);
49                   else
50                       E(i,j) = 0;
51                   end
52               end
53           end
54             E = uint8(E);
55             
56           Inew(:,:,1) = C;
57           Inew(:,:,2) = D;
58           Inew(:,:,3) = E;
59           savename = strcat('E:\file',name);
60           imwrite(Inew,savename);
61           
62       end
63     end
64     
65 end