how to store many result in csv file in a row ?

I have 20+ images in a folder and want to store their feature result in CSV file. here is my code :

srcFiles = dir('D:\study\iccit_confr\mono\*.jpg');  % the folder in which ur images exists
for i = 1 : length(srcFiles)
    filename = strcat('D:\study\iccit_confr\mono\',srcFiles(i).name);
    I = imread(filename);
    %figure, imshow(I);
     I2 = imcrop(I);
    figure, imshow(I2)

   u=lbp(I2);
   disp(u)

   csvwrite('test.csv',u)
  end

I have LBP function file. By this code only last result stored in CSV file. plz, help by giving a code for solving this.

Answer 1

[Stephen23]

You need to change the filename for each loop iteration, e.g.:

fnm = sprintf('test_%04d.csv',i);
csvwrite(fnm,u)

Otherwise you are simply overwriting the same file on each iteration.

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html

[sumu nowshin]

Thank u so much @Stephen Cobeldick. But I want to store this dates in one CSV file. as in my code, one by one image giving results of LBP feature I want to store them like one image comes as per loop and count LBP value and store in one CSV file :

[Stephen23]

@sumu nowshin: the easiest way would probably be to write the file using fprintf. You can easily define the format string to be the required length (use repmat) and add newlines when required. Simply open the file and keep appending the data!

Alternatively you could try using save(...,'-ascii','-append'), which according to the save documentation "For ASCII files, '-append' adds data to the end of the file." I have never tried this.

[sumu nowshin]

Thank u so much @Stephen Cobeldick.For my research work, I need to store feature values of blood cell images in a CSV file