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?

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,[]);

Y2= imadjust(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')

Answer 1

[DGM]

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

https://www.mathworks.com/matlabcentral/answers/310882-how-to-write-multiple-images-into-a-folder

https://www.mathworks.com/matlabcentral/answers/57446-faq-how-can-i-process-a-sequence-of-files

[pantea sam]

I enter this code and it saves the last image 64 times

for a=1:64

output_folder='D:\ct';

myImage = imresize(im,[500 500]);

outputFileName = fullfile(output_folder, ['xct' num2str(a) '.bmp']);

imwrite(myImage, outputFileName);

end

[Stephen23]

@pantea sam: because im is exactly the same on every loop iteration.

[pantea sam]

@Stephen23 How should I write?

The im(k).name I use gives me white images