how to Reconstruct full image from 128 patches of 256*256?

I have an image of 128 patches and each size is 256*256, now I want reconstruct image by using these patches. To verify how exact image will be as compared to orignal image.

[Amjad Iqbal]

I have an image of 128 patches and each size is 256*256, now I want reconstruct image 
by using these patches. To verify how exact image will be as compared to orignal image.
Size of origanl image is 2048*4096, Please guide in this context, 
specifically matrix index error for this line.
C(ii,jj) = C(ii,jj) + A(ii+m,jj+n).*conj(B(ii+m,jj+n));


% C = zeros(size(A));
% tic;
% for ii = k+1:size(A,1)-k
%     for jj = k+1:size(A,2)-k
%         C(ii,jj) = 0;
%         S1 = 0;
%         S2 = 0;
%         for m = -k:k
%             for n = -k:k
% % % %                 C(ii,jj) = C(ii,jj) + A(ii+m,jj+n).*conj(B(ii+m,jj+n));
%                 S1 = S1 + abs(A(ii+m,jj+n))^2;
%                 S2 = S2 + abs(B(ii+m,jj+n))^2;
%             end;
%         end;
%         C(ii,jj) = C(ii,jj)/sqrt(S1)/sqrt(S2);
%     end;
% end;
% toc;

Answer 1

[Shadaab Siddiqie]

From my understanding you want to combine multiple images to from single image. For this you can refer to the imtitle. For example:

load mri
imshow(D(:,:)); % list of all the images

Combining above images

out = imtile(D, map);
imshow(out);

You can also change the aspect of the image, like

out = imtile(D, map, 'Frames', 1:8, 'GridSize', [2 4]);
figure;
imshow(out);

[Amjad Iqbal]

Dear Shadaab Siddiqie,

Thanks for response, I have patchified image in 128 patches, with size 256*256. Now using that .mat file sized( 128*256*256), I want to reconstruct whole image of size (2048*4096). Abovemntioned is about joing or tiling images, and there is border lines among neighbourhood image, however I need full image like given below.