From a61ccc722985eb095c0caba10d3b770bbf7d22a2 Mon Sep 17 00:00:00 2001
From: cristy <urban-warrior@git.imagemagick.org>
Date: Wed, 9 Apr 2014 10:23:51 +0000
Subject: [PATCH]

---
 MagickCore/effect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MagickCore/effect.c b/MagickCore/effect.c
index d727753fc..175b34bcf 100644
--- a/MagickCore/effect.c
+++ b/MagickCore/effect.c
@@ -1137,7 +1137,7 @@ MagickExport Image *CannyEdgeImage(const Image *image,const double radius,
       }
       pixel.magnitude=sqrt(dx*dx+dy*dy);
       pixel.orientation=0;
-      if (dx != 0.0)
+      if (fabs(dx) > MagickEpsilon)
         {
           double
             theta;
-- 
2.50.1