From b572edf669330d552bf6c1ef5352e5ee0c8206a9 Mon Sep 17 00:00:00 2001
From: cristy <urban-warrior@git.imagemagick.org>
Date: Tue, 13 Sep 2011 12:25:22 +0000
Subject: [PATCH]

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

diff --git a/MagickCore/accelerate.c b/MagickCore/accelerate.c
index 4e8a8c93a..8e1f50f06 100644
--- a/MagickCore/accelerate.c
+++ b/MagickCore/accelerate.c
@@ -633,6 +633,8 @@ MagickExport MagickBooleanType AccelerateConvolveImage(const Image *image,
   if ((GetImageVirtualPixelMethod(image) != UndefinedVirtualPixelMethod) &&
       (GetImageVirtualPixelMethod(image) != EdgeVirtualPixelMethod))
     return(MagickFalse);
+  if (GetPixelChannels(image) != 4)
+    return(MagickFalse);
 #if !defined(MAGICKCORE_OPENCL_SUPPORT)
   return(MagickFalse);
 #else
-- 
2.40.0