/*!

\if MANPAGES
\page dconvlum Convert VeriLUM files to DCMTK display files
\else
\page dconvlum dconvlum: Convert VeriLUM files to DCMTK display files
\endif

\section dconvlum_synopsis SYNOPSIS

\verbatim
dconvlum in-file out-file [ambient]
\endverbatim

\section dconvlum_description DESCRIPTION

Command line program that converts VeriLUM file with characteristic curve data
(\e CCx_xx.dat) to a format used for the Barten transformation in this toolkit.
VeriLUM is a calibration package from ImageSmiths consisting of a photometer
(with serial RS232 connector) and a Windows NT software.

\section dconvlum_parameters PARAMETERS

\verbatim
in-file   VeriLUM characteristic curve file to be converted

out-file  DCMTK display file to be written

ambient   ambient light (cd/m^2, floating point value)
\endverbatim

\section dconvlum_notes NOTES

The output file describing the characteristic curve of a display system
(monitor) is a simple text file.  Lines starting with a '#' are treated as
comments and therefore skipped as well as blank lines.  This conversion
program creates such a file automatically (including some comment lines) by
transforming the information stored in the VeriLUM file.  The number following
the magic word 'max' defines the maximum DDL value (e.g. 255 for 8 bit
displays).  This definition is required before the luminance data can be
defined.  Optionally the ambient light value can be specified in this file
too.  The floating point value (in candela per square meter) must follow the
word 'amb'.  Finally the luminance values are defined for each corresponding
DDL (digital driving level) value.  The entries do not necessarily have to be
ordered or complete, i.e. there can be less than 'max' + 1 entries.  Missing
values are calculated by cubic spline interpolation.

See DICOM standard part 14 for more details on display calibration and
Barten's model (including GSDF).

\section dconvlum_see_also SEE ALSO

<b>dcmdspfn</b>(1), <b>dcm2pnm</b>(1)

\section dconvlum_copyright COPYRIGHT

Copyright (C) 1999-2022 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.

*/