python批量处理图片颜色反转

#coding:utf-8
import os
from PIL import Image
import numpy as np

def resize(imgPath,savePath):
    files = os.listdir(imgPath)
    files.sort()
    print('****************')
    print('input :',imgPath)
    print('start...')
    for file in files:
        fileType = os.path.splitext(file)
        if fileType[1] == '.jpg':
            new_png = Image.open(imgPath+'/'+file) #打开图片
            #new_png = new_png.resize((20, 20),Image.ANTIALIAS) #改变图片大小
            matrix = 255-np.asarray(new_png) #图像转矩阵 并反色
            new_png = Image.fromarray(matrix) #矩阵转图像
            new_png.save(savePath+'/'+file) #保存图片
    print('down!')
    print('****************')

if __name__ == '__main__':
    # 待处理图片地址
    dataPath = 'F:\\clean_images\\profiles\\'
    #保存图片的地址
    savePath = 'F:\\clean_images\\new_mask\\'
    resize(dataPath,savePath)