From: Cristy <urban-warrior@imagemagick.org>
Date: Sat, 18 Nov 2017 13:12:17 +0000 (-0500)
Subject: Correct fuzz distance algorithm to ensure expected results
X-Git-Tag: 7.0.7-12~76
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ed4691ff366c508e88bb84cd2af22e381899e0a6;p=imagemagick

Correct fuzz distance algorithm to ensure expected results
---

diff --git a/MagickCore/compare.c b/MagickCore/compare.c
index beaf119ef..96a104518 100644
--- a/MagickCore/compare.c
+++ b/MagickCore/compare.c
@@ -384,6 +384,7 @@ static MagickBooleanType GetAbsoluteDistortion(const Image *image,
   */
   status=MagickTrue;
   fuzz=GetFuzzyColorDistance(image,reconstruct_image);
+  fuzz*=fuzz;
   rows=MagickMax(image->rows,reconstruct_image->rows);
   columns=MagickMax(image->columns,reconstruct_image->columns);
   image_view=AcquireVirtualCacheView(image,exception);