import cv2, os base_path = "data/images/" new_path = "data/ims/" for infile in os.listdir(base_path): print ("file : " + infile) read = cv2.imread(base_path + infile) outfile = infile.split('.')[0] + '.jpg' cv2.imwrite(new_path+outfile,read,[int(cv2.IMWRITE_JPEG_QUALITY), 200])