set default colorspace, fixes #1655 (#1656)

diff --git a/Magick++/lib/Magick++/STL.h b/Magick++/lib/Magick++/STL.h
index 6032796b818eeeba9e33e904f2c5b964dfefbf49..96e31f9dd7a31b571af154a14f23b528f42a7330 100644 (file)
--- a/Magick++/lib/Magick++/STL.h
+++ b/Magick++/lib/Magick++/STL.h
@@ -2236,7 +2236,7 @@ namespace Magick
   template<class InputIterator >
   void combineImages(Image *combinedImage_,InputIterator first_,
     InputIterator last_,const ChannelType channel_,
-    const ColorspaceType colorspace_)
+    const ColorspaceType colorspace_ = MagickCore::sRGBColorspace)
   {
     MagickCore::Image
       *image;