From: cristy <urban-warrior@git.imagemagick.org>
Date: Thu, 9 Jan 2014 17:30:12 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: 7.0.1-0~2925
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7559fc47f69ab110d1a654d88aba5d937700698d;p=imagemagick

---

diff --git a/MagickCore/compare.c b/MagickCore/compare.c
index 3c596eefa..5e09c3b7c 100644
--- 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;
     }