import os
import cv2

root = "H:\\Fine-grained-identification\\2021.3.25\\image\\灰斑鸻"
def jpg(root):
    filelist = os.listdir(root)
    num = 6000
    for file in filelist:
        os.rename(os.path.join(root,file),os.path.join(root,file.replace(".png",".jpg")))
        # img = cv2.imread(os.path.join("E:\\semi_dianli_image",file))
        # img = cv2.resize(img,(1024,768))
        #
        # cv2.imwrite(os.path.join("E:\\semi_dianli_images","Hat{}.jpg".format(num)),img)
        # num+=1