1.py

import matplotlib
# Needed before pyplot import for matplotlib to work properly.
# matplotlib.use('Agg')
import matplotlib.image as mpimg 
import matplotlib.pyplot as plt
from matplotlib.widgets  import RectangleSelector
from matplotlib.patches import Circle,Rectangle


fig = plt.figure()  # make a new plotting range
im = mpimg.imread(query_image_paths[idx])  # HxWxC
plt.imshow(im)
currentAxis = plt.gca()
#画圆
cir = plt.Circle(xy=(100,100), radius=10)
currentAxis.add_patch(cir)
#画框
rect=patches.Rectangle(xy=(200, 600),550,650,linewidth=1,edgecolor='r',facecolor='none')
currentAxis.add_patch(rect)