from machinevisiontoolbox import Image
import matplotlib as mpl
img = Image.Read("monalisa.png")
for color in mpl.color_sequences["petroff10"]:
    u = np.random.randint(20, img.umax-20)
    v = np.random.randint(20, img.vmax-20)
    r = np.random.randint(10, 50)
    img.draw_circle((u, v), r, thickness=-1, color=[255*c for c in color])
img.disp(img)