From 948520b72a24fce6b4a7fea51a4cf3ed88fb0103 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Sun, 21 May 2017 16:16:43 -0400
Subject: [PATCH] 
 http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=31928

---
 MagickCore/compare.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MagickCore/compare.c b/MagickCore/compare.c
index 1e014cf7a..768aa18c3 100644
--- a/MagickCore/compare.c
+++ b/MagickCore/compare.c
@@ -2016,6 +2016,7 @@ MagickExport Image *SimilarityImage(const Image *image,const Image *reference,
       }
   }
   similarity_view=DestroyCacheView(similarity_view);
+  (void) SetImageAlphaChannel(similarity_image,OffAlphaChannel,exception);
   if (status == MagickFalse)
     similarity_image=DestroyImage(similarity_image);
   return(similarity_image);
-- 
2.50.1