How do I save image in folder using imrite and how do I show all the image in folder?

4 次查看（过去 30 天）
Dayangku Nur Faizah Pengiran Mohamad
回答： Image Analyst 2022-10-16
Here my codes:-
%Save the folder of images in the current directory
path_directory='/home/motmot/Documents/Malignant/M1/Testing/benign/validate_image/b245'; % 'Folder name'
original_files=dir([path_directory '/*.jpg']);
for k=1:length(original_files)
filename=[path_directory '/' original_files(k).name];
image_orginal=imread(filename);
img=im2double(image_original);
[r,c,b]=size(img);
data=reshape(img,r*c,b);
[ctr, class]=fcm(data,2);
disp(ctr);
class1=reshape(class(2,:),r,c);
imshow(class1);
imwrite(class1,'fcmgrayb245_73_864_rap00001.jpg');
end

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采纳的回答

Image Analyst
Image Analyst 2022-10-16
If the images are not showing, except for the last one. Put a drawnow right after you call imshow.
imshow(class1);
drawnow;
This will force the images to update on the screen immediately. Otherwise if your loop is too fast, maybe only the last one is shown.

更多回答（1 个）

Jan
Jan 2022-10-15
Maybe you want to create the file name dynamically:
...
outFile = fullfile(path_directory, sprintf('fcmgrayb245_73_864_rap%05d.jpg', k));
imwrite(class1, outFile);
  2 个评论
Dayangku Nur Faizah Pengiran Mohamad
Dayangku Nur Faizah Pengiran Mohamad 2022-10-16
Ok thanks. But I want to ask, about this code:-
outFile = fullfile(path_directory, sprintf('fcmgrayb245_73_864_rap%05d.jpg', k));
what is mean by the '%05d' from the last code? Is it 5 times repeating save the image?
Jan
Jan 2022-10-16
Ran in:
See: doc sprintf, or sprintf
The %05d appears in the sprintf command. Then it influences the output to a char vector and not the number of times of saving. Try this:
sprintf('%05d', 17)
ans = '00017'
sprintf('%5d', 17)
ans = ' 17'
sprintf('%d', 17)
ans = '17'
The %5d reserves 5 characters. With %05d the leading characters are filled by zeros.
"fcmgrayb245_73_864_rap00001.jpg" looked like you want to append a counter at the end of the file name.

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