From 454bb02bb091b8389294910c2c8a01cf341450f8 Mon Sep 17 00:00:00 2001
From: cristy <urban-warrior@git.imagemagick.org>
Date: Tue, 23 Apr 2013 13:03:38 +0000
Subject: [PATCH]

---
 MagickCore/threshold.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MagickCore/threshold.c b/MagickCore/threshold.c
index 795d1ba28..4536769b7 100644
--- a/MagickCore/threshold.c
+++ b/MagickCore/threshold.c
@@ -777,7 +777,7 @@ MagickExport MagickBooleanType ClampImage(Image *image,ExceptionInfo *exception)
       {
         PixelChannel channel=GetPixelChannelChannel(image,i);
         PixelTrait traits=GetPixelChannelTraits(image,channel);
-        if (traits == UndefinedPixelTrait)
+        if ((traits & UpdatePixelTrait) == 0)
           continue;
         q[i]=ClampPixel(q[i]);
       }
-- 
2.40.0