From: cristy <urban-warrior@git.imagemagick.org>
Date: Thu, 10 Apr 2014 00:20:02 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: 7.0.1-0~2464
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=671a8dd0ddc92bd47a34a3ff9b2a3b419f365885;p=imagemagick

---

diff --git a/MagickCore/effect.c b/MagickCore/effect.c
index ad5d5e759..6ec76b2eb 100644
--- a/MagickCore/effect.c
+++ b/MagickCore/effect.c
@@ -1143,25 +1143,25 @@ MagickExport Image *CannyEdgeImage(const Image *image,const double radius,
       if (fabs(dx) > MagickEpsilon)
         {
           double
-            theta;
+            slope;
 
-          theta=dy/dx;
-          if (theta < 0.0)
+          slope=dy/dx;
+          if (slope < 0.0)
             {
-              if (theta < -2.41421356237)
+              if (slope < -2.41421356237)
                 pixel.orientation=0;
               else
-                if (theta < -0.414213562373)
+                if (slope < -0.414213562373)
                   pixel.orientation=1;
                 else
                   pixel.orientation=2;
             }
           else
             {
-              if (theta > 2.41421356237)
+              if (slope > 2.41421356237)
                 pixel.orientation=0;
               else
-                if (theta > 0.414213562373)
+                if (slope > 0.414213562373)
                   pixel.orientation=3;
                 else
                   pixel.orientation=2;