dconvlum(1)

📦
version 3.7.1 · 10 versions
, in arch rolling

okay so bestie, meet dconvlum(1) from OFFIS DCMTK 💅✨ — the little command-line icon whose whole job is converting VeriLUM files into DCMTK display files. no cap, she's useful.

🌸 NAME 🌸

dconvlum — Convert VeriLUM files to DCMTK display files 🦋

✨ SYNOPSIS ✨

the whole summoning spell is:

dconvlum in-file out-file [ambient]

💅 DESCRIPTION 💅

okay so this is a command line program that converts a VeriLUM file with characteristic curve data (CCx_xx.dat) into a format used for the Barten transformation in this toolkit. 🎀

VeriLUM is a calibration package from ImageSmiths, and it consists of a photometer (with serial RS232 connector) and a Windows NT software. periodt.

🎀 PARAMETERS 🎀

  • in-file — the VeriLUM characteristic curve file to be converted, bestie. That's the input.
  • out-file — the DCMTK display file to be written. That's the output.
  • ambient — ambient light (cd/m^2, floating point value). Optional, iykyk.

🧚 NOTES 🧚

okay so the output file — the one 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 🦋

Copyright (C) 1999-2026 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Germany.

💖 and that's the whole page, bestie — dconvlum(1), Version 3.7.1, Sat Oct 17 2026 09:34:01, from OFFIS DCMTK. byeee 🫶🌈

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