# encoding: UTF-8
import glob as gb
import cv2
import os.path as osp
import os

#Returns a list of all folders with participant numbers
img_path = gb.glob("/home/xieyangyang/Downloads/dataset/Grayscale_Thermal/FastCarNig/v/*png")
img_path.sort()
i = 1
for path in img_path:
    rename = osp.join(osp.split(path)[0], str(i) + '.png')
    os.rename(path, rename)
    i = i + 1