I have following code, i want to perform following task on many images reading from directory. kindly help me through code.

I=imread('E:\a.jpg');
      figure(1),imshow(I);
      FaceDetect = vision.CascadeObjectDetector; 
      BB = step(FaceDetect,I);
       figure(2),imshow(I);
   for i = 1:size(BB,1)
      rectangle('Position',BB(i,:),'LineWidth',3,'LineStyle','-  ','EdgeColor','r');
   end
   for i = 1:size(BB,1)
   J= imcrop(I,BB(i,:));
  % figure(3),subplot(5,5,i);imshow(J);
   fname = sprintf('b_cropped_%d.jpg', i);
  fpath = fullfile('E:\face', fname);
  imwrite(J, fpath)
   % imwrite(J,'E:\g_cropped.jpg')
   end

[Jan]

@saeeda saher: You have posted 4 very similar questions now:

• https://www.mathworks.com/matlabcentral/answers/369933-i-have-following-code-i-want-to-perform-following-task-on-many-images-reading-from-directory-kindl (this one)
• https://www.mathworks.com/matlabcentral/answers/368049-i-have-directory-which-has-many-images-i-want-to-perform-face-detection-and-cropping-process-on-th
• https://www.mathworks.com/matlabcentral/answers/368409-how-to-create-loop-to-read-many-images-from-directory-and-then-create-a-folder-for-each-image-and-sa
• https://www.mathworks.com/matlabcentral/answers/367782-i-have-directory-there-are-many-images-in-this-directory-i-want-to-detect-the-face-from-images-an

In the last one you have removed your comments, such that the thread became useless for other readers now. This is not liked in the forum, because the answers a given with the intention to be useful for the community and all readers. Posting multiple questions for the same problem is confusing for the readers and it wastes the time of the persons, who want to help you.

Please post one thread per problem and explain the remaining problems as comments until the question is solved. Add comments, if the suggested code works or what is still missing. Avoid to remove information, which is required to understand the thread. Thanks.

[saeeda saher]

ok thanks Jan Simon :)

Answer 1

[Jan]

See https://www.mathworks.com/matlabcentral/answers/57446-faq-how-can-i-process-a-sequence-of-files

Simply replace

I = imread('E:\a.jpg');

by

Folder   = 'E:\';
FileList = dir(fullfile(Folder, '*.jpg'));
for iFile = 1:numel(FileList)
   File = fullfile(Folder, FileList(iFile).name);
   I    = imread(File);
   ...
      % Consider the name or index of the original file:
      fname = sprintf('b_cropped_%d_%d.jpg', iFile, i);
   ...
end

[saeeda saher]

kindly edit my provided code for applying the loop on face detection portion and cropping.. thanks