# hi ,I processed images on a folder. Now I want to save all the processed photos in the folder, but only the last photo is saved, what should I do?

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pantea sam on 15 May 2022
Commented: pantea sam on 16 May 2022
hi ,I processed images on a folder. Now I want to save all the processed photos in the folder, but only the last photo is saved, what should I do?
.......
for y=1:160
x_theta=image_resize(x,y)*cos(theta)+image_resize(x,y)*sin(theta);
y_theta=-image_resize(x,y)*sin(theta)+image_resize(x,y)*cos(theta);
gb(x,y)= exp(-(x_theta.^2/2*bw^2+ gamma^2*y_theta.^2/2*bw^2))*cos(2*pi/lambda*x_theta+psi);
end
end
% figure(2);
% imshow(gb);
% title('filtered image');
Y1= imtophat(gb, strel('disk', 150));
% figure, imshow(Y1,[]);
% figure,imshow(Y2);
level=graythresh(Y2);
BW=im2bw(Y2,level);
% figure, imshow(BW);
C=~BW;
% figure, imshow(C);
D= -bwdist(C);
D(C)= -Inf;
L=watershed(D);
Wi=label2rgb(L, 'hot', 'w');
% figure,subplot(1,2,1), imshow (Wi);
im= gb;
im(L==0)=0;
% subplot(1,2,2), imshow (im,[]);
end
imwrite(im,'new.png')

DGM on 15 May 2022
Edited: DGM on 15 May 2022
Considering that there's missing code and open scopes, we're left to guess whether anything is inside of a loop or not. Either way, it should be obvious that
imwrite(im,'new.png')
only writes an array to one file -- the same file every time. You're the only one who knows where this is in your code, so you'll have to figure out whether this is even being called more than once.
There are many examples of processing sequences of files
pantea sam on 16 May 2022
@Stephen23 How should I write?
The im(k).name I use gives me white images