diff --git a/hyperlpr/finemapping.py b/hyperlpr/finemapping.py
index 20955a1..bf3b454 100644
--- a/hyperlpr/finemapping.py
+++ b/hyperlpr/finemapping.py
@@ -2,8 +2,7 @@
 import cv2
 import numpy as np
 
-from skimage.filters import (threshold_otsu, threshold_niblack,
-                             threshold_sauvola)
+
 import niblack_thresholding as nt
 
 import deskew
@@ -128,4 +127,4 @@ def findContoursAndDrawBoundingBox2(image_rgb):
     image,M= deskew.fastDeskew(image)
 
 
-    return image
\ No newline at end of file
+    return image