how to recombine subimages from cell2mat which is divided into blocks of 8x8?What is mistake in the code? Actually after splitting into window size of 8x8 by using mat2cell() .
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I am not able to reconstruct back into the whole image which is needed as per the algorithm in order to perform other operations. So plz suggest some command or technique.
a=VideoReader('test.mp4 ');
b = read(a,1 );
c=rgb2gray(b );
nframe=a.NumberOfFrames ;
for i=115:116
prev_frame =read(a,i-1 );
e=rgb2gray(prev_frame );
figure
imshow(e );
pause(0.2)
current_frame =read(a,i);
h=rgb2gray(current_frame );
figure
imshow(h);
rows = 8 ;
columns = 8 ;
[H,W,~] = size(c );
szH = [repmat(fix(H/rows),1,rows )];
szW = [repmat(fix(W/columns),1,columns )]; //to split into window size of 8x8 as per my algorithm
C = mat2cell(e, szH, szW )';
D = mat2cell(h, szH, szW )';
figure
for j=1:rows*columns
subplot(rows,columns,j), imshow( C{j } ) //to plot above cells
end
figure
for j=1:rows*columns
subplot(rows,columns,j), imshow( D{j } )
end
for k=1:1*8
o=1:1*8
G=cell2mat(C(k,o)');
figure
imshow(G);at this point i am getting images which i am not able to recombine.kindly suggest something here
end
for k=1:8
o=1:8
H=cell2mat(D(k,o)');
figure
imshow(H);
end
w=std(double(G));
figure
plot(w);
b=std(double(H));
figure
plot(b);
level=graythresh(G);
level=graythresh(H);
if level>level1
T=im2bw(G);
figure
imshow(T);
else
P=im2bw(H);
figure
imshow(P);
end
end
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Accepted Answer
KSSV
on 14 Mar 2018
Try like this:
GG = cell(8,1) ;
for k=1:1*8
o=1:1*8 ;
G=cell2mat(C(k,o)');
GG{k} = G ;
figure
imshow(G);% at this point i am getting images which i am not able to recombine.kindly suggest something here
end
I = [GG{:}]
Now I is your whole image....
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