text: # example of extracting bounding boxes from an annotation file
  from xml.etree import ElementTree
  
  # function to extract bounding boxes from an annotation file
  def extract_boxes(filename):
  	# load and parse the file
  	tree = ElementTree.parse(filename)
  	# get the root of the document
  	root = tree.getroot()
  	# extract each bounding box
  	boxes = list()
  	for box in root.findall('.//bndbox'):
  		xmin = int(box.find('xmin').text)
  		ymin = int(box.find('ymin').text)
  		xmax = int(box.find('xmax').text)
  		ymax = int(box.find('ymax').text)
  		coors = [xmin, ymin, xmax, ymax]
  		boxes.append(coors)
  	# extract image dimensions
  	width = int(root.find('.//size/width').text)
  	height = int(root.find('.//size/height').text)
  	return boxes, width, height
  
  # extract details form annotation file
  boxes, w, h = extract_boxes('kangaroo/annots/00001.xml')
  # summarize extracted details
  print(boxes, w, h)