OpenCV图像处理——python批量缩放图片并存储，cv2.resize

核心代码：以将480*480的8张图片缩小为300*300为例

import cv2
import numpy as np
import os

os.mkdir("D:/MNIST-master/data/img_resize")
for i in range(0,8):
    a=i+1
    b=i+1
    img_name = str(a)
    img = cv2.imread("C:/Users/10230/Desktop/resource_photo/"+img_name+".png")
    img2 = cv2.resize(img, (300, 300))
    # # 转换np数组格式
    # pix_img = np.array(img)
    # # 重新reshape图片
    # pix_img = pix_img.reshape(-1, 28, 28, 1)
    # # 查看reshape后的图片shape
    img_name2 = str(b)
    cv2.imwrite("D:/MNIST-master/data/img_resize/"+img_name2+".png", img2)

运行结果：

原图：