python读取图片并修改格式与大小的方法
本文实例为大家分享了python读取图片并修改文件大小的具体代码，供大家参考，具体内容如下
# Author:NDK
# -*- coding:utf-8 -*-
from PIL import Image
import os
import cv2
import numpy as np
import glob
# old_dir = './test/'
# def read_image(cwd, newpath):
# for roots, dirs, files in os.walk(cwd):
# print(dirs)
# for i in dirs:
# print(i)
# os.chdir(cwd + i)
# for pic in glob.glob('*.png'):
# _, image = pic.split('_')
# img = image.split('.')[0]
# print(img)
# if len(img) != 0:
# if int(img) % 2 != 0:
# im = Image.open(pic)
# im.save(newpath + i + '/' + pic)
# read_image('./num/','./new_img/')
# for i in range(10):
root_path = r"/test/9/" #操作文件路径
print(root_path)
# dir = root_path+"images"+"/"
dir = root_path
count = 0
for root,dir,files in os.walk(dir):
for file in files:
srcImg = cv2.imread(root_path+"/"+str(file))
img = Image.open(root_path+"/"+str(file))
print(root_path+str(file))
newImg = img.resize((50, 50), Image.BILINEAR) #想调整的大小
cv2.imwrite(r'./img2/'+str(file),newImg) # 写入文件地址
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持【听图阁-专注于Python设计】。