NAME

       dconvlum - Convert VeriLUM files to DCMTK display files

SYNOPSIS

       dconvlum in-file out-file [ambient]

DESCRIPTION

       Command  line  program that converts VeriLUM file with characteristic curve data (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.

PARAMETERS

       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)

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).

SEE ALSO

       dcmdspfn(1), dcm2pnm(1)

COPYRIGHT

       Copyright (C) 1999-2014 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.