...

diff --git a/MagickCore/signature.c b/MagickCore/signature.c
index 60bea230038d46cd64b44ea66e683ecbdf92af7e..3eadfbed3e487f669e3caadb58346c0cf8672db8 100644 (file)
--- a/MagickCore/signature.c
+++ b/MagickCore/signature.c
@@ -520,7 +520,7 @@ MagickExport MagickBooleanType SignatureImage(Image *image,
       register ssize_t
         i;
 
-      if (GetPixelWriteMask(image,p) == 0)
+      if (GetPixelReadMask(image,p) == 0)
         {
           p+=GetPixelChannels(image);
           continue;