# HG changeset patch
# User Nicolas Saunier <nicolas.saunier@polymtl.ca>
# Date 1454107437 18000
# Node ID e92a96f2bdd3c3c8700be1f43b0049bc97d19b96
# Parent  bd13937818a4a7f009db4bd5f13553eee115a453
minor bug corrections

diff -r bd13937818a4 -r e92a96f2bdd3 python/cvutils.py
--- a/python/cvutils.py	Fri Jan 22 17:43:09 2016 -0500
+++ b/python/cvutils.py	Fri Jan 29 17:43:57 2016 -0500
@@ -454,16 +454,16 @@
             if ret:
                 print 'Found pattern in '+fname
                 
-                if(secondPassSearch): 
+                if secondPassSearch:
                     corners = cv2.cornerSubPix(gray, corners, (11,11), (-1,-1), criteria)
 
                 objpoints.append(objp)
                 imgpoints.append(corners)
 
                 # Draw and display the corners
-                if(display):
+                if display:
                     img = cv2.drawChessboardCorners(img, (checkerBoardSize[1],checkerBoardSize[0]), corners, ret)
-                    if(img):
+                    if img is not None:
                         cv2.imshow('img',img)
                         cv2.waitKey(0)