01图片缩放

import cv2
img = cv2.imread('image1.jpg',1)
imageInfo = img.shape
print(imageInfo)#打印图片的信息
height = imageInfo[0]
width = imageInfo[1]
mode = imageInfo[2]
#对图片进行缩放
dstHeight = int(height*0.5)
dstWidth = int(width*0.5)
#双线性插值
dst = cv2.resize(img,(dstHeight,dstWidth))
cv2.imshow('image',dst)
cv2.waitKey(0)

结果展示如下：