From: Cristy <urban-warrior@imagemagick.org>
Date: Sun, 28 Aug 2016 13:24:43 +0000 (-0400)
Subject: Prevent runtime error: division by zero
X-Git-Tag: 7.0.3-0~19
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1ccd189606c8fdae50ab0e2e6a16965ec5528c26;p=imagemagick

Prevent runtime error: division by zero
---

diff --git a/MagickCore/statistic.c b/MagickCore/statistic.c
index c40559fde..99e982188 100644
--- a/MagickCore/statistic.c
+++ b/MagickCore/statistic.c
@@ -2162,8 +2162,9 @@ MagickExport ChannelStatistics *GetImageStatistics(const Image *image,
         count;
 
       count=histogram[GetPixelChannels(image)*j+i]*area;
-      channel_statistics[i].entropy+=-count*MagickLog10(count)/
-        MagickLog10(number_bins);
+      if (number_bins > MagickEpsilon)
+        channel_statistics[i].entropy+=-count*MagickLog10(count)/
+          MagickLog10(number_bins);
     }
   }
   for (i=0; i < (ssize_t) MaxPixelChannels; i++)