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diff --git a/MagickCore/effect.c b/MagickCore/effect.c
index 70afa6a4339fee6f48bfc035ba072328a5999e34..57f74815ec1a977a622955ec9cbea75c862bc79e 100644 (file)
--- a/MagickCore/effect.c
+++ b/MagickCore/effect.c
@@ -1384,11 +1384,11 @@ MagickExport Image *ConvolveImage(const Image *image,const size_t order,
           continue;
         if ((convolve_traits & CopyPixelTrait) != 0)
           {
-            const Quantum
-              *restrict center;
+            const size_t
+              center;
 
-            center=p+((image->columns+width)*width/2)*channels+i;
-            SetPixelChannel(convolve_image,channel,*center,q);
+            center=((image->columns+width)*width/2)*channels+i;
+            SetPixelChannel(convolve_image,channel,p[center],q);
             continue;
           }
         k=normal_kernel;