How to Write file names of multiple images to a csv file.?

Asked by Renjith V Ravi on 31 Oct 2017

Latest activity Answered by Walter Roberson on 31 Oct 2017

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From the code below,I got the file names of multiple images from a folder.

clear all
close all
clc
Directory = 'Images_folder\';
Imgs = [dir(fullfile(Directory,'*.bmp')); dir(fullfile(Directory,'*.jpg'));
     dir(fullfile(Directory,'*.png'));dir(fullfile(Directory,'*.tif'))];
% D = dir('images');
ID = 1;MDMF=2;IDMF=3;HD=4;UHD=5;
m=[ID,MDMF,IDMF,HD,UHD];%comma separation is necessary for errorles result
for j=1:length(Imgs)
    Img = imread(fullfile(Directory,Imgs(j).name));  % Read image
%     figure    
%     imshow(Img)
end
headers={'File_Name',};
for i=1:length(Imgs)  
 f_name =Imgs(i).name;
 f_name = f_name(1:end-4);
 filename = sprintf('%s',f_name);
disp(filename)
 csvwrite('Myfile.csv',filename)
end

My aim is to write these file names into first column of Myfile.csv.Bu I am getting error.Please help me

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Answer by Walter Roberson on 31 Oct 2017

You cannot use csvwrite() or dlmwrite() to selectively overwrite columns. You would need to use xlswrite() or writetable() to selectively overwrite columns.

If you are just trying to create a new file with those entries as the only content, then the easiest way is to do it "manually". No loop is required:

fid = fopen('Myfile.csv', 'wt');
[~, f_names] = cellfun(@fileparts, {Imgs.name}, 'uniform', 0);
fprintf(fid, '%s\n', f_names{:});
fclose(fid);

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Renjith V Ravi (view profile)