NAME

       dcod2lum - Convert hardcopy characteristic curve file to softcopy format

SYNOPSIS

       dcod2lum in-file out-file

DESCRIPTION

       Command  line  program  that  converts  a  hardcopy  characteristic curve file to softcopy
       format. In other words, the measured optical density (OD) values from the input  file  are
       transformed to the luminance space according to the formula:

         L = La + L0 * 10^(-D)

       where  L  is  the  resulting  luminance,  La  is  the  reflected  ambient light and L0 the
       illumination (both measured in cd/m^2), 'D' the optical density (OD). Please note that  if
       no  illumination  value  is  specified in the input file (keyword lum) all optical density
       values are mapped to a constant luminance.

PARAMETERS

       in-file   hardcopy characteristic curve file to be converted

       out-file  softcopy characteristic curve file to be written

NOTES

       The format of both input and ouput file is described the  documentation  of  the  dcmdspfn
       command  line  tool.  In  addition,  the  data folder contains sample characteristics file
       monitors, cameras, printers and scanners.

FILES

       <datadir>/camera.lut - sample characteristics file of a camera
       <datadir>/monitor.lut - sample characteristics file of a monitor
       <datadir>/printer.lut - sample characteristics file of a printer
       <datadir>/scanner.lut - sample characteristics file of a scanner

SEE ALSO

       dcmdspfn(1)

COPYRIGHT

       Copyright (C) 2002-2010 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.