How to process multiple images and produce output files?

   %code
   % Save all images name in a sequence manner before doing the operation
   path_directory='folder_name'; % 'Folder name' Must be in current directory
   original_files=dir([path_directory '/*.jpg']); 
   for k=1:length(original_files)
      filename=[path_directory '/' original_files(k).name];
      I=imread(filename)
      I=rgb2gray(I);
      I2=uint8(filter2(fspecial('gaussian'), I));
      J=imread('Test_3(background)-1.jpg');
      J2=uint8(filter2(fspecial('gaussian'), J));
      K=imabsdiff(I2,J2);
      K2=imadjust(K,stretchlim(K),[0.05,0.5]);
      destination='D:\......\folder_name\im'; %Complete path to save image
      %save images as im1.webp, im2.jpg etc
      imwrite(K2,[destination,num2str(k),'.jpg']);
  end