How to put a bounding box over a human silhouette figure?

I have used foreground detector to extract the human silhouette and used H,S channels of HSV to get shadow free silhouette. How to put a bounding box over it so that i can track the human?

foregroundDetector = vision.ForegroundDetector('NumGaussians',3,'NumTrainingFrames',10,'LearningRate',0.000001); 
foregroundDetector1 = vision.ForegroundDetector('NumGaussians',3,'NumTrainingFrames',10,'LearningRate',0.000001,'InitialVariance',(30/255)^2); 

vid = videoinput('winvideo', 1); %select input device 
i=1;
DlgH = figure('units','normalized','outerposition',[0 0 1 1]);
H = uicontrol('Style', 'PushButton', ...
                    'String', 'Close', ...
                    'Callback', 'delete(gcbf)');

while (ishandle(H))

      frame = getsnapshot(vid);  
       subplot(1,3,1), imshow(frame);
      title('frame');
      foreground = step(foregroundDetector, frame);
      %imshow(foreground);    
      hsv = rgb2hsv(frame);
      hsfore = step(foregroundDetector1, hsv(:,:,1:2));

      se = strel('square', 3);

      filteredForeground = imopen(foreground, se);
      HsfilteredForeground = imopen(hsfore, se);
      Res = imdilate (HsfilteredForeground,ones(5));
      re =  imfill(Res,'holes');
     subplot(1,3,3), imshow(re);
     title('HS foreground Without shadow');

     subplot(1,3,2), imshow(filteredForeground); 
     title('RGB Foreground');
     drawnow 

end
close

Answer 1

[Image Analyst]

Use the rectangle() function:

hold on
rectangle('Position', [xLeft, yTop, width, height]);