import numpy as np
import cv2
import os
# 图片所在位置
dir_path = '/Users/frank/Downloads/project/'
for filename in os.listdir(dir_path):
# 下面可以更改图片的格式
if filename.endswith(".jpeg"):
filename_ = dir_path+'/'+filename
image = cv2.imread(filename_)
# 通过fx与fy改变原来的像素倍数
resized = cv2.resize(image, None, fx=0.25, fy=0.25, interpolation=cv2.INTER_AREA)
cv2.imwrite(filename_, resized)
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