import os import cv2 def flip_some_images(): directory = 'C:/Users/meric/Desktop/TUM/CBMLR/Repo/G1_RoboSkate/scripts/python/RoboSkateIL/RoboSkateExpertData/directionError/images/' os.chdir('C:/Users/meric/Desktop/TUM/CBMLR/Repo/G1_RoboSkate/scripts/python/RoboSkateIL/RoboSkateExpertData/directionError/images/') for file in os.listdir(directory): img = cv2.imread(directory + file) horizontal_img = cv2.flip(img, 1) # saving now cv2.imwrite('flipped' + file, horizontal_img) if __name__ == '__main__': flip_some_images()