From: dirk <dirk@git.imagemagick.org>
Date: Mon, 19 Sep 2016 20:18:59 +0000 (+0200)
Subject: Temporary set channel mask to the supplied mask.
X-Git-Tag: 7.0.3-1~11
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8c1b9cc192bfe6571bec5980e53d0e4709e19489;p=imagemagick

Temporary set channel mask to the supplied mask.
---

diff --git a/MagickWand/magick-image.c b/MagickWand/magick-image.c
index 738bf3714..c262fce08 100644
--- a/MagickWand/magick-image.c
+++ b/MagickWand/magick-image.c
@@ -11711,13 +11711,18 @@ WandExport MagickBooleanType MagickThresholdImageChannel(MagickWand *wand,
   MagickBooleanType
     status;
 
+  ChannelType
+    channel_mask;
+
   assert(wand != (MagickWand *) NULL);
   assert(wand->signature == MagickWandSignature);
   if (wand->debug != MagickFalse)
     (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
   if (wand->images == (Image *) NULL)
     ThrowWandException(WandError,"ContainsNoImages",wand->name);
+  channel_mask=SetImageChannelMask(wand->images,channel);
   status=BilevelImage(wand->images,threshold,wand->exception);
+  (void) SetImageChannelMask(wand->images,channel_mask);
   return(status);
 }