draw rectangle on extracted region
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Hello everyone, I have extracted the moving region by subtracting the video frames. Now I want to draw a rectangle over the extracted part but the problem is the pixels are not connected, thus I can't use regionprops() because it gives several boxes due to disconnected pixels. I have inserted the image where I want to draw rectangle over the extracted moving pendulum area. How can I do this. Please help. Thanks.
Walter Roberson on 21 Jun 2015
vertprofile = any(YourImage>0,1);
bbox_x_low = find(vertprofile, 1, 'first');
bbox_x_high = find(vertprofile, 1, 'last');
horzprofile = any(YourImage>0,2);
bbox_y_low = find(horzprofile, 1, 'first');
bbox_y_high = find(horzprofile, 1, 'last');
The way to proceed from there depends upon how you are going to draw the rectangle.