bugfix

Author: shiyutang

ppocr/data/imaug/ct_process.py

@@ -14,16 +14,16 @@
 
 import os
 import cv2
+import paddle
 import random
 import pyclipper
-import paddle
-
 import numpy as np
-import Polygon as plg
-
 from PIL import Image
+
 import paddle.vision.transforms as transforms
 
+from ppocr.utils.utility import check_install
+
 
 class RandomScale():
     def __init__(self, short_size=640, **kwargs):