# Locations of candidate objects will be saved into rects
rects = []
dlib.find_candidate_object_locations(img, rects, min_size=500)
print("number of rectangles found {}".format(len(rects)))
for k, d in enumerate(rects):
print("Detection {}: Left: {} Top: {} Right: {} Bottom: {}".format(
k, d.left(), d.top(), d.right(), d.bottom()))