From ccd11e9e593ec5ed68b4161f178dff6712be92b2 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Sun, 18 May 2025 18:18:16 -0400
Subject: [PATCH] sanitize DSSIM metric

---
 MagickCore/compare.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/MagickCore/compare.c b/MagickCore/compare.c
index edc0aaec66..686d399eff 100644
--- a/MagickCore/compare.c
+++ b/MagickCore/compare.c
@@ -1802,6 +1802,8 @@ static MagickBooleanType GetStructuralDisimilarityDistortion(const Image *image,
     distortion[i]=1.0-distortion[i];
   }
   distortion[CompositePixelChannel]=1.0-distortion[CompositePixelChannel];
+  if (fabs(distortion[CompositePixelChannel]) < MagickEpsilon)
+    distortion[CompositePixelChannel]=0.0;
   return(status);
 }