(no commit message)

diff --git a/MagickCore/enhance.c b/MagickCore/enhance.c
index 44477517b2ba2477b79d1419fb0cf05b5009221a..2a0600f0d44b79da1ba4d30df811875f37286b20 100644 (file)
--- a/MagickCore/enhance.c
+++ b/MagickCore/enhance.c
@@ -3366,7 +3366,7 @@ static inline double InverseScaledSigmoidal(const double a,const double b,
       :
       ( argument > 1-MagickEpsilon ? 1-MagickEpsilon : argument )
     );
-  return(b+(-1.0/a)*log(1.0/clamped+-1.0));
+  return(b-(1.0/a)*log(1.0/clamped-1.0));
 #endif
 }