diff --git a/opencv_transforms/functional.py b/opencv_transforms/functional.py
index 7ad6dd2..f490307 100644
--- a/opencv_transforms/functional.py
+++ b/opencv_transforms/functional.py
@@ -1,7 +1,7 @@
 import torch
 import math
 import random
-# from PIL import Image, ImageOps, ImageEnhance, PILLOW_VERSION
+from PIL import Image, ImageOps, ImageEnhance, PILLOW_VERSION
 try:
     import accimage
 except ImportError:
@@ -555,4 +555,4 @@ def to_grayscale(img, num_output_channels=1):
     elif num_output_channels==3:
         # much faster than doing cvtColor to go back to gray
         img = np.broadcast_to(cv2.cvtColor(img, cv2.COLOR_RGB2GRAY)[:,:,np.newaxis], img.shape) 
-    return img
\ No newline at end of file
+    return img