OpenCV 图片缩小 Python 代码示例

import cv2

img = cv2.imread('lena.png') h, w, c = img.shape

cv2.namedWindow('lena') cv2.imshow('lena', img) cv2.waitKey(500)

resized_img = cv2.resize(img, (h//2, w//2)) cv2.imshow('resized_lena', resized_img) cv2.waitKey(0)