将一个文件夹下的png图像灰度变换

png_2_gray

from PIL import Image
import os

# path = os.getcwd()  # 获取当前路径
file_path = "C:\\Users\\Lenovo\\Desktop\\image"
file_list = os.listdir(path=file_path)
print(os.path)
# print(file_list)
for file in file_list:
    filename = os.path.splitext(file)[0]
    filexten = os.path.splitext(file)[1]
    if filexten == ".png" or ".jpg":
        I = Image.open(file_path + "\\" + file)
        L = I.convert("L")
        L.save("..\\images\\" + filename + ".bmp")