1dconvlum(1)                       OFFIS DCMTK                      dconvlum(1)
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NAME

6       dconvlum - Convert VeriLUM files to DCMTK display files
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SYNOPSIS

10       dconvlum in-file out-file [ambient]
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DESCRIPTION

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

20       in-file   VeriLUM characteristic curve file to be converted
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22       out-file  DCMTK display file to be written
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24       ambient   ambient light (cd/m^2, floating point value)
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NOTES

27       The output file describing the characteristic curve of a display system
28       (monitor) is a simple text file. Lines starting with a '#' are  treated
29       as  comments  and  therefore  skipped  as  well  as  blank  lines. This
30       conversion program creates such a file  automatically  (including  some
31       comment  lines)  by  transforming the information stored in the VeriLUM
32       file. The number following the magic word 'max' defines the maximum DDL
33       value (e.g. 255 for 8 bit displays). This definition is required before
34       the luminance data can be defined. Optionally the ambient  light  value
35       can be specified in this file too. The floating point value (in candela
36       per square meter) must follow the word  'amb'.  Finally  the  luminance
37       values  are  defined for each corresponding DDL (digital driving level)
38       value. The entries do not necessarily have to be ordered  or  complete,
39       i.e.  there  can  be  less  than  'max' + 1 entries. Missing values are
40       calculated by cubic spline interpolation.
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42       See DICOM standard part 14 for more details on display calibration  and
43       Barten's model (including GSDF).
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SEE ALSO

46       dcmdspfn(1), dcm2pnm(1)
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49       Copyright  (C)  1999-2022  by OFFIS e.V., Escherweg 2, 26121 Oldenburg,
50       Germany.
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54Version 3.6.7                   Fri Apr 22 2022                    dconvlum(1)
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