(no commit message)

diff --git a/MagickCore/compare.c b/MagickCore/compare.c
index 3c596eefa184eb61a24d7d3336b44218af178df9..5e09c3b7c712a479e33a4ad56a3c418e24f17726 100644 (file)
--- a/MagickCore/compare.c
+++ b/MagickCore/compare.c
@@ -1135,8 +1135,8 @@ static MagickBooleanType GetPerceptualHashDistortion(const Image *image,
       double
         difference;
 
-      difference=log10(fabs(reconstruct_moments[channel].I[i]))-
-         log10(fabs(image_moments[channel].I[i]));
+      difference=log10(fabs(reconstruct_moments[channel].I[i]-
+         image_moments[channel].I[i]));
       distortion[channel]+=difference*difference;
       distortion[CompositePixelChannel]+=difference*difference;
     }