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[imagemagick] / MagickCore / colorspace-private.h

diff --git a/MagickCore/colorspace-private.h b/MagickCore/colorspace-private.h
index 479d7eeb324b0557560ce77354326cca3a084287..803bc9890550960b765680a6971193f7fc244184 100644 (file)
--- a/MagickCore/colorspace-private.h
+++ b/MagickCore/colorspace-private.h
@@ -1,5 +1,5 @@
 /*
-  Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization
+  Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization
   dedicated to making software imaging solutions freely available.
   
   You may not use this file except in compliance with the License.
@@ -34,7 +34,9 @@ static inline void ConvertRGBToCMYK(PixelInfo *pixel)
     magenta,
     yellow;
                                                                                 
-  if ((pixel->red == 0) && (pixel->green == 0) && (pixel->blue == 0))
+  if ((fabs(pixel->red) < MagickEpsilon) &&
+      (fabs(pixel->green) < MagickEpsilon) &&
+      (fabs(pixel->blue) < MagickEpsilon))
     {
       pixel->black=(MagickRealType) QuantumRange;
       return;