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diff --git a/MagickCore/pixel.c b/MagickCore/pixel.c
index 4f1a5f2e6e31686382fc05b2ecd7810db8d03988..6588568d041c0cd51d0543e32c6a179d2af2a5aa 100644 (file)
--- a/MagickCore/pixel.c
+++ b/MagickCore/pixel.c
@@ -3588,7 +3588,9 @@ MagickExport void InitializePixelChannelMap(Image *image)
     SetPixelChannelMapTraits(image,(PixelChannel) i,(PixelTrait)
       UpdatePixelTrait);
   alpha_channel=GetPixelChannelMapChannel(image,AlphaPixelChannel);
-  if (image->matte != MagickFalse)
+  if (image->matte == MagickFalse)
+    SetPixelChannelMapTraits(image,AlphaPixelChannel,CopyPixelTrait);
+  else
     for (i=0; i < (ssize_t) image->number_channels; i++)
       if ((PixelChannel) i != alpha_channel)
         SetPixelChannelMapTraits(image,(PixelChannel) i,(PixelTrait)