from machinevisiontoolbox import Image

im = Image.Read("sharks.png")
im.disp()
blobs = im.blobs()
blobs[0].plot_box('b--') # blue dashed box
blobs[1].plot_box(color="blue", linestyle="--") # blue dashed box
blobs[2].plot_box(color="g") # solid green box
blobs[3].plot_box(color="r", linewidth=4)