saving processed image which is in form of array to another single dimenison array

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rohan
rohan on 27 Apr 2014
Answered: rohan on 29 Apr 2014
if true
% code
>> folder='C:\Users\Public\Videos\Sample Videos\pro\Ne';
m=0;
for k = 2 : 10
% Get the base file name.
baseFileName = sprintf('img%d.jpg', k);
% Combine it with the folder to get the full filename.
fullFileName = fullfile(folder, baseFileName);
% Read the image file into an array.
imageArray = imread(fullFileName);
a=imageArray;
figure(1);
imshow(a);
title('color image');
c=rgb2gray(a);
b=imresize(c, [512 512]);
figure(2);
imshow(b);
title('original gray scale image');
n=512;
k=1;
for i=1:1:n
for j=1:2:n
if (j<=n-1)
s(i,k)=(b(i,j)+b(i,j+1))/2;
d(i,k)=b(i,j)-b(i,j+1);
end
k=k+1;
end
k=1;
end
for i=1:1:n
for j=1:1:n/2
b(i,j)=s(i,j);
b(i,j+n/2)=d(i,j);
end
end
for j=1:1:n/2
for i=1:2:n
if i<=n-1
s(k,j)=(b(i,j)+b(i+1,j))/2;
d(k,j)=b(i,j)-b(i+1,j);
end
k=k+1;
end
k=1;
end
for i=1:1:n/2
for j=1:1:n/2
b(i,j)=s(i,j);
b(i+n/2,j)=d(i,j);
end
end
figure(3);
imshow(b);
title('image after one level of compression')
for i=1:1:n/2
for j=1:2:n/2
if (j<=n/2-1)
s(i,k)=(b(i,j)+b(i,j+1))/2;
d(i,k)=b(i,j)-b(i,j+1);
end
k=k+1;
end
k=1;
end
for i=1:1:n/2
for j=1:1:n/4
b(i,j)=s(i,j);
b(i,j+n/4)=d(i,j);
end
end
for j=1:1:n/4
for i=1:2:n/2
if i<=n/2-1
s(k,j)=(b(i,j)+b(i+1,j))/2;
d(k,j)=b(i,j)-b(i+1,j);
end
k=k+1;
end
k=1;
end
for i=1:1:n/4
for j=1:1:n/4
b(i,j)=s(i,j);
b(i+n/4,j)=d(i,j);
end
end
figure(4);
imshow(b);
title('image after two level of compression')
for i=1:1:n/4
for j=1:2:n/4
if (j<=n/4-1)
s(i,k)=(b(i,j)+b(i,j+1))/2;
d(i,k)=b(i,j)-b(i,j+1);
end
k=k+1;
end
k=1;
end
for i=1:1:n/4
for j=1:1:n/8
b(i,j)=s(i,j);
b(i,j+n/8)=d(i,j);
end
end
for j=1:1:n/8
for i=1:2:n/4
if i<=n/4-1
s(k,j)=(b(i,j)+b(i+1,j)/2);
d(k,j)=b(i,j)-b(i+1,j);
end
k=k+1;
end
k=1;
end
for i=1:1:n/8
for j=1:1:n/8
b (i, j)=s(i,j);
b (i+n/8, j)=d(i,j);
end
end
b=imcrop(b,[0 0 64 64]);
m=k;
g(m)=b;
end
figure (5);
imshow(b);
title('image after third level of compression')
b=imresize(b, [3456 4608]);
end
for n=2:10
imshow(b);
format = 'jpg';
str = ['C:\Users\Public\Videos\Sample Videos\pro\Newr\im' num2str(k) '.jpg'] ;
b=g(n);
imwrite(b,str,format) ;
end
Warning: Image is too big to fit on screen; displaying at 67% > In imuitools\private\initSize at 72 In imshow at 259 In an assignment A(:) = B, the number of elements in A and B must be the same.
>> folder='C:\Users\Public\Videos\Sample Videos\pro\Ne'; m=0; for k = 2 : 10 % Get the base file name. baseFileName = sprintf('img%d.jpg', k); % Combine it with the folder to get the full filename. fullFileName = fullfile(folder, baseFileName); % Read the image file into an array. imageArray = imread(fullFileName); a=imageArray; figure(1); imshow(a); title('color image'); c=rgb2gray(a); b=imresize(c, [512 512]); figure(2); imshow(b); title('original gray scale image'); n=512; k=1; for i=1:1:n for j=1:2:n if (j<=n-1) s(i,k)=(b(i,j)+b(i,j+1))/2; d(i,k)=b(i,j)-b(i,j+1); end k=k+1; end k=1; end for i=1:1:n for j=1:1:n/2 b(i,j)=s(i,j); b(i,j+n/2)=d(i,j); end end for j=1:1:n/2 for i=1:2:n if i<=n-1 s(k,j)=(b(i,j)+b(i+1,j))/2; d(k,j)=b(i,j)-b(i+1,j); end k=k+1; end k=1; end for i=1:1:n/2 for j=1:1:n/2 b(i,j)=s(i,j); b(i+n/2,j)=d(i,j); end end figure(3); imshow(b); title('image after one level of compression') for i=1:1:n/2 for j=1:2:n/2 if (j<=n/2-1) s(i,k)=(b(i,j)+b(i,j+1))/2; d(i,k)=b(i,j)-b(i,j+1); end k=k+1; end k=1; end for i=1:1:n/2 for j=1:1:n/4 b(i,j)=s(i,j); b(i,j+n/4)=d(i,j); end end for j=1:1:n/4 for i=1:2:n/2 if i<=n/2-1 s(k,j)=(b(i,j)+b(i+1,j))/2; d(k,j)=b(i,j)-b(i+1,j); end k=k+1; end k=1; end for i=1:1:n/4 for j=1:1:n/4 b(i,j)=s(i,j); b(i+n/4,j)=d(i,j); end end figure(4); imshow(b); title('image after two level of compression') for i=1:1:n/4 for j=1:2:n/4 if (j<=n/4-1) s(i,k)=(b(i,j)+b(i,j+1))/2; d(i,k)=b(i,j)-b(i,j+1); end k=k+1; end k=1; end for i=1:1:n/4 for j=1:1:n/8 b(i,j)=s(i,j); b(i,j+n/8)=d(i,j); end end for j=1:1:n/8 for i=1:2:n/4 if i<=n/4-1 s(k,j)=(b(i,j)+b(i+1,j)/2); d(k,j)=b(i,j)-b(i+1,j); end k=k+1; end k=1; end for i=1:1:n/8 for j=1:1:n/8 b (i, j)=s(i,j); b (i+n/8, j)=d(i,j); end end b=imcrop(b,[0 0 64 64]); g(k)=b; end figure (5); imshow(b); title('image after third level of compression') b=imresize(b, [3456 4608]); end for n=2:10 imshow(b); format = 'jpg'; str = ['C:\Users\Public\Videos\Sample Videos\pro\Newr\im' num2str(k) '.jpg'] ; b=g(n); imwrite(b,str,format) ; end
.................................................................................................... 'my error is-' > In imuitools\private\initSize at 72 In imshow at 259 In an assignment A(:) = B, the number of elements in A and B must be the same.
end

Answers (1)

rohan
rohan on 29 Apr 2014
'sir carefully look at the last 4th and the last 15th line..i have made them under star too..that particular syntax gives error.
i wanna save the image obtained in b to some array g(n),bt it gives error'
if true
% code
>> folder='C:\Users\Public\Videos\Sample Videos\pro\Ne';
m=0;
for k = 2 : 10
% Get the base file name.
baseFileName = sprintf('img%d.jpg', k);
% Combine it with the folder to get the full filename.
fullFileName = fullfile(folder, baseFileName);
% Read the image file into an array.
imageArray = imread(fullFileName);
a=imageArray;
figure(1);
imshow(a);
title('color image');
c=rgb2gray(a);
b=imresize(c, [512 512]);
figure(2);
imshow(b);
title('original gray scale image');
n=512;
k=1;
for i=1:1:n
for j=1:2:n
if (j<=n-1)
s(i,k)=(b(i,j)+b(i,j+1))/2;
d(i,k)=b(i,j)-b(i,j+1);
end
k=k+1;
end
k=1;
end
for i=1:1:n
for j=1:1:n/2
b(i,j)=s(i,j);
b(i,j+n/2)=d(i,j);
end
end
for j=1:1:n/2
for i=1:2:n
if i<=n-1
s(k,j)=(b(i,j)+b(i+1,j))/2;
d(k,j)=b(i,j)-b(i+1,j);
end
k=k+1;
end
k=1;
end
for i=1:1:n/2
for j=1:1:n/2
b(i,j)=s(i,j);
b(i+n/2,j)=d(i,j);
end
end
figure(3);
imshow(b);
title('image after one level of compression')
for i=1:1:n/2
for j=1:2:n/2
if (j<=n/2-1)
s(i,k)=(b(i,j)+b(i,j+1))/2;
d(i,k)=b(i,j)-b(i,j+1);
end
k=k+1;
end
k=1;
end
for i=1:1:n/2
for j=1:1:n/4
b(i,j)=s(i,j);
b(i,j+n/4)=d(i,j);
end
end
for j=1:1:n/4
for i=1:2:n/2
if i<=n/2-1
s(k,j)=(b(i,j)+b(i+1,j))/2;
d(k,j)=b(i,j)-b(i+1,j);
end
k=k+1;
end
k=1;
end
for i=1:1:n/4
for j=1:1:n/4
b(i,j)=s(i,j);
b(i+n/4,j)=d(i,j);
end
end
figure(4);
imshow(b);
title('image after two level of compression')
for i=1:1:n/4
for j=1:2:n/4
if (j<=n/4-1)
s(i,k)=(b(i,j)+b(i,j+1))/2;
d(i,k)=b(i,j)-b(i,j+1);
end
k=k+1;
end
k=1;
end
for i=1:1:n/4
for j=1:1:n/8
b(i,j)=s(i,j);
b(i,j+n/8)=d(i,j);
end
end
for j=1:1:n/8
for i=1:2:n/4
if i<=n/4-1
s(k,j)=(b(i,j)+b(i+1,j)/2);
d(k,j)=b(i,j)-b(i+1,j);
end
k=k+1;
end
k=1;
end
for i=1:1:n/8
for j=1:1:n/8
b (i, j)=s(i,j);
b (i+n/8, j)=d(i,j);
end
end
b=imcrop(b,[0 0 64 64]);
m=k;
*g(m)=b;*
end
figure (5);
imshow(b);
title('image after third level of compression')
b=imresize(b, [3456 4608]);
end
for n=2:10
imshow(b);
format = 'jpg';
str = ['C:\Users\Public\Videos\Sample Videos\pro\Newr\im' num2str(k) '.jpg'] ;
*b=g(n);*
imwrite(b,str,format) ;
end
end

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