how to save all images features from a folder

FDetect = vision.CascadeObjectDetector;
myFolder = 'C:\dataSet';
filePattern = fullfile(myFolder, '*.jpg');
jpegFiles = dir(filePattern);
for k = 1:length(jpegFiles)
  baseFileName = jpegFiles(k).name;
  fullFileName = fullfile(myFolder, baseFileName);
  fprintf(1, 'Now reading %s\n', fullFileName);
  imageArray = imread(fullFileName);
  BB = step(FDetect, imageArray);
  imshow(imageArray); hold on  % Display image.
  for i = 1:size(BB,1)
    rectangle('Position',BB(i,:),'LineWidth',5,'LineStyle','-','EdgeColor','r');
  end
  title('Face Detection');
  hold off;
  %To detect Nose
  NoseDetect = vision.CascadeObjectDetector('Nose','MergeThreshold',16);
  BB=step(NoseDetect,imageArray);
  figure,
  imshow(imageArray); hold on
  for i = 1:size(BB,1)
    rectangle('Position',BB(i,:),'LineWidth',4,'LineStyle','-','EdgeColor','b');
  end
  title('Nose Detection');
  hold off;
  
  %To detect Mouth
  MouthDetect = vision.CascadeObjectDetector('Mouth','MergeThreshold',16);
  BB=step(MouthDetect,imageArray);
  figure,
  imshow(imageArray); hold on
  for i = 1:size(BB,1)
  rectangle('Position',BB(i,:),'LineWidth',4,'LineStyle','-','EdgeColor','r');
  end
  title('Mouth Detection');
  hold off;
%To detect Eyes
  EyeDetect = vision.CascadeObjectDetector('EyePairBig');
  BB=step(EyeDetect,imageArray);
  figure,imshow(imageArray);
 
  drawnow; % Force display to update immediately.
end

the above code run prefectly but issue is that save last image value in a bounding box plz help me. how to face all bound box values in all images

[Jan]

What exactly is your question? "issue is that save last image value in a bounding box" is not clear to me.