import cv2
file=r'C:\Users\lenovo\Desktop\img_mv.jpg'
def img_show(img):
cv2.imshow('zzb',img)
cv2.waitKey(0)
cv2.destroyAllWindows()
#读取图像
img=cv2.imread(file)
img_1=cv2.resize(img,(400,400))
print(img_1.shape)
img_show(img_1)
img_show(img)