(no commit message)

diff --git a/MagickCore/effect.c b/MagickCore/effect.c
index d727753fc2a3b58cbd9fc687ea5406cdc27873b4..175b34bcf594e29afa901b0dc27a4336ed0200e6 100644 (file)
--- 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;