MATLAB Answers

i want to save names of the images(frame_0000, frame_0001, frame_0003........) in a text file by reading them from a folder.

15 views (last 30 days)
sidra Rafique
sidra Rafique on 14 Aug 2018
Commented: sidra Rafique on 15 Aug 2018
i want to save names of the images(frame_0000, frame_0001, frame_0003........) in a text file by reading them from a folder. somehow i am getting errors while writing the code. As i am new to MatLab please help me. Waiting for your response.

Accepted Answer

Stephen
Stephen on 14 Aug 2018
Edited: Stephen on 14 Aug 2018
D = 'directory where images are';
S = dir(fullfile(D,'*.jpg'));
% Save filenames:
[fid,msg] = fopen('names.txt','wt');
assert(fid>=3,msg)
fprintf(fid,'ImageName\n')
fprintf(fid,'%s\n',S.name)
fclose(fid);
% Load files:
for k = 1:numel(S)
Im = imread(fullfile(D,S(k).name));
...
end
This uses S.name to generate a comma-separated list, and so each filename gets printed to the textfile.
  9 Comments
sidra Rafique
sidra Rafique on 15 Aug 2018
still its not working. but i have used xlswrite() to save in excel instead of text document. and its working and its more simpler. Thanks for your help.

Sign in to comment.

More Answers (1)

Yuvaraj Venkataswamy
Yuvaraj Venkataswamy on 14 Aug 2018
In your case you can use below command.
if true
imwrite(frames, fullfile(f_folder,sprintf ('%frame_04d.jpg', nFrame)));
end
  1 Comment
sidra Rafique
sidra Rafique on 14 Aug 2018
i am done with reading all the 1000 images(frame_0000, frame_0001, frame_0003...., frame_1000) from a folder using below code:
Directory= //path where images are located
Imgs = dir(fullfile(Directory,'*.jpg'));
for j=1:length(Imgs)
Img = imread(fullfile(Directory,Imgs(j).name)); % Read image
end
but now i am still unable to make a text file consisting of names of all the read images with same name format in column.i.e;
ImageName
frame_0000
frame_0001
.
.
.
for that i am using below code:
fid = fopen('names.txt','w');
fprintf(fid, '%5s\n','Imagename');
fprintf(fid, '%i\n',j);
fclose(fid);
but its only showing last read image if i do %i but with %s its showing nothing.. please help me in finding solution.

Sign in to comment.

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by