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pacsDisplay

pacsdisplay.org

Free plan Windows
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Spec score 7.5 #14 of 24 in Display Calibration Software

What it is

pacsDisplay is an open-source project for calibrating DICOM grayscale displays and checking their image quality. Its calibration tools measure luminance response and create DICOM GSDF lookup tables. The iQC tool shows interactive quality-control patterns, including TG270-pQC, TG270-sQC, and TG270-ULN. For uniformity checks, uniLum collects luminance measurements and reports deviation from the median and mean luminance deviation. Other tools assess ambient lighting and measure luminance and illuminance. The listed compatible photometers include X-Rite i1Display Studio, Pro, and Plus; NEC SpectraSensor Pro; ColorMunki Display; Calibrite Display Pro and Plus HL; and rebranded meters. Version 6A supports external-display measurements in lumResponse and uniLum. The current release supports Windows 10 and 11. Its pdQC toolkit can be deployed from a USB drive or network without installation. The Windows installer places files in Program Files, the Public Users folder, and the Start Menu without modifying the registry or system services. Development began in 1999, and the project is distributed under the GNU General Public License v3.0.

Spec sheet

Purpose
pacsDisplay is an open-source project for generating and installing DICOM grayscale LUTs and performing quality control on DICOM-calibrated displays.Read 8 Oct 2026 · pacsdisplay.org
Support
Users can report bugs through GitHub Issues and contact the maintainer by email at nick 'at' pacsdisplay.org.Read 8 Oct 2026 · pacsdisplay.org
License
The software is distributed under the GNU General Public License v3.0.Read 8 Oct 2026 · github.com
Founded
1999Read 28 Sep 2026 · pacsdisplay.org
Ambient light
The project includes tools for evaluating ambient lighting conditions and measuring luminance and illuminance.Read 8 Oct 2026 · pacsdisplay.org
Calibration
Its tools measure display luminance response and generate DICOM GSDF calibration LUTs.Read 8 Oct 2026 · github.com
External displays
Version 6A supports measuring external displays in lumResponse and uniLum.Read 8 Oct 2026 · pacsdisplay.org
History
Development began in 1999, and the site says Henry Ford Health has used the programs in its radiology department.Read 8 Oct 2026 · pacsdisplay.org
Installation
The Windows installation moves files to Program Files, the Public Users folder, and the Start Menu, without changing the registry or system services.Read 8 Oct 2026 · pacsdisplay.org
Photometer compatibility
The site lists X-Rite i1Display Studio/Pro/Plus, NEC SpectraSensor Pro, ColorMunki Display, Calibrite Display Pro/Plus HL, and rebranded meters as compatible.Read 8 Oct 2026 · pacsdisplay.org
Platform
The current release supports Microsoft Windows 10/11 environments.Read 8 Oct 2026 · pacsdisplay.org
Portable package
The pdQC toolkit is described as portable and deployable from a USB drive or network without installation requirements.Read 8 Oct 2026 · github.com
Quality control
The iQC tool displays interactive test patterns, including TG270-pQC, TG270-sQC, and TG270-ULN patterns.Read 8 Oct 2026 · github.com
Uniformity
The uniLum program collects luminance uniformity measurements and reports deviation from median and mean luminance deviation.Read 8 Oct 2026 · github.com

Plans and prices

pacsDisplay Free Open-source software; current release is for Windows 10/11 Read 8 Oct 2026 · pacsdisplay.org

Every pacsDisplay plan and price →

Strong points and limits

Strong points

  • Generates DICOM GSDF calibration LUTs
  • Includes interactive quality-control patterns
  • Measures luminance uniformity and ambient lighting
  • Portable toolkit can run without installation
  • GNU GPL v3.0 license

Limits

  • Current release supports Windows 10 and 11 only
  • External-display measurements are listed for version 6A
  • Calibration requires a compatible photometer

Who it suits

It suits people responsible for calibrating DICOM grayscale displays and performing display quality checks in Windows 10 or 11 environments. The listed photometer compatibility can help determine whether existing measurement equipment is suitable.

Verdict

pacsDisplay covers calibration, uniformity, and interactive quality-control patterns for DICOM grayscale displays. Confirm that the Windows version and listed photometer support match your setup.

Where Specifiction places it

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