saving series of image

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rohan
rohan on 24 Apr 2014
Commented: Image Analyst on 28 Apr 2014
imwrite(imageArray,'C:\Users\Public\Videos\Sample Videos\pro\New','jpg');
this is my code to read series of image and save it to other directory
however i could not save it properly..
>> 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);
figure,imshow(imageArray);
imwrite(imageArray,'C:\Users\Public\Videos\Sample Videos\pro\New','jpg');
end

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Accepted Answer

Image Analyst
Image Analyst on 24 Apr 2014
See the FAQ for proper code that you can modify to do that: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F
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rohan
rohan on 27 Apr 2014
if true
% code
folder='C:\Users\Public\Videos\Sample Videos\pro\Ne';
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]);
figure (5);
imshow(b);
title('image after third level of compression')
b=imresize(b, [3456 4608]);
imshow(b);
imwrite(b,'C:\Users\Public\Videos\Sample Videos\pro\Newr\im%d.jpg',k);
end
end
Image Analyst
Image Analyst on 28 Apr 2014
Rohan, you totally ignored the FAQ link I gave you. How do I know? If you had looked at it you would NOT have written this:
imwrite(b,'C:\Users\Public\Videos\Sample Videos\pro\Newr\im%d.jpg',k);
imwrite() is not like sprintf() - it does not embed "k" into the filename string. You need to do it in two steps like the FAQ shows:
fullFileName = sprintf('C:/Users/Public/Videos/Sample Videos/pro/Newr/im%d.jpg',k);
imwrite(b,fullFileName);

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