用Image打开图像并给图像外画红框

from PIL import Image
import matplotlib.pyplot as plt
import matplotlib.patches as patches
image = Image.open(im) #im为图像路径
image = image.resize((128, 384))#图像resize到宽128，高384
plt.imshow(image)
plt.axis('off')
#根据设置的坐标点和宽高还可以画不同形状的框
rect = patches.Rectangle((0, 0), image.width, image.height, linewidth=2, edgecolor='r',facecolor='none') #facecolor设置为none是不填充内部
plt.gca().add_patch(rect)
plt.show()

效果如下图所示，给读取的行人图像外画框