+ boost::shared_ptr<const OpenJPEGImage>,
+ ColourConversion const & conversion,
+ uint8_t* rgb,
+ int stride,
+ boost::optional<NoteHandler> note = boost::optional<NoteHandler> ()
+ );
+
+extern boost::shared_ptr<OpenJPEGImage> rgb_to_xyz (
+ uint8_t const * rgb,
+ dcp::Size size,
+ int stride,