dconvlum(1) OFFIS DCMTK dconvlum(1) 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 pro- gram creates such a file automatically (including some comment lines) by transforming the information stored in the VeriLUM file. The number follow- ing 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 de- fined. 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) 1999-2025 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Ger- many. Version 3.7.0 Mon Dec 15 2025 dconvlum(1)
NAME | SYNOPSIS | DESCRIPTION | PARAMETERS | NOTES | SEE ALSO | COPYRIGHT
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