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 2022-5-15

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评论： pantea sam 2022-5-16

.......

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

% 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')

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Answer 1

DGM 2022-5-15

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编辑：DGM 2022-5-15

在 MATLAB Online 中打开

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