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pacsDisplay
What pacsDisplay is
pacsDisplay is a free, open-source project for calibrating DICOM grayscale displays and checking their quality. Its tools measure luminance response and generate DICOM GSDF calibration lookup tables. The iQC tool displays interactive test 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 project tools evaluate 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. The pdQC toolkit can be deployed from a USB drive or network without installation, while the Windows installation places files in Program Files, the Public Users folder and the Start Menu without changing the registry or system services. Development began in 1999, and the software is distributed under GNU GPL v3.0.
Who it suits
It suits users who need DICOM display calibration and quality-control tools in a Windows 10 or 11 environment. The listed photometer compatibility and external-display support may help readers check whether their measurement setup is covered.
What it does well
- Generates DICOM GSDF calibration lookup tables.
- Includes interactive display quality-control patterns.
- Measures luminance uniformity and ambient lighting.
- Portable pdQC toolkit can run from USB or network.
What to know first
- Current release supports Windows 10 and 11 only.
- External-display measurements are specified for version 6A.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| pacsDisplay | Open-source software; current release is for Windows 10/11 | Free |
As pacsdisplay.org lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Visit https://pacsdisplay.org/ and obtain the Windows release.
- Use the Windows installer, or deploy the portable pdQC toolkit from a USB drive or network.
- For measurement workflows, use a compatible photometer.
Verdict
pacsDisplay combines DICOM grayscale calibration with quality-control, uniformity and ambient-light tools. Its current release is for Windows 10 and 11, and users should check the listed photometer compatibility for their equipment.
Questions
How much does pacsDisplay cost?
The listed plan is free. It is open-source software.
Which platforms does it support?
The current release supports Microsoft Windows 10 and 11.
What can it do for display calibration?
Its tools measure display luminance response and generate DICOM GSDF calibration LUTs.
Which photometers are listed as compatible?
The list includes X-Rite i1Display Studio, Pro, and Plus; NEC SpectraSensor Pro; ColorMunki Display; Calibrite Display Pro and Plus HL; and rebranded meters.
Is pacsDisplay open source?
Yes. It is distributed under the GNU General Public License v3.0.
Facts from pacsDisplay's own pages
- Ambient light
- The project includes tools for evaluating ambient lighting conditions and measuring luminance and illuminance. · pacsdisplay.org, 8 Oct 2026
- Calibration
- Its tools measure display luminance response and generate DICOM GSDF calibration LUTs. · github.com, 8 Oct 2026
- External displays
- Version 6A supports measuring external displays in lumResponse and uniLum. · pacsdisplay.org, 8 Oct 2026
- Founded
- 1999 · pacsdisplay.org, 28 Sept 2026
- History
- Development began in 1999, and the site says Henry Ford Health has used the programs in its radiology department. · pacsdisplay.org, 8 Oct 2026
- Installation
- The Windows installation moves files to Program Files, the Public Users folder, and the Start Menu, without changing the registry or system services. · pacsdisplay.org, 8 Oct 2026
- License
- The software is distributed under the GNU General Public License v3.0. · github.com, 8 Oct 2026
- 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. · pacsdisplay.org, 8 Oct 2026
- Platform
- The current release supports Microsoft Windows 10/11 environments. · pacsdisplay.org, 8 Oct 2026
- Portable package
- The pdQC toolkit is described as portable and deployable from a USB drive or network without installation requirements. · github.com, 8 Oct 2026
- Purpose
- pacsDisplay is an open-source project for generating and installing DICOM grayscale LUTs and performing quality control on DICOM-calibrated displays. · pacsdisplay.org, 8 Oct 2026
- Quality control
- The iQC tool displays interactive test patterns, including TG270-pQC, TG270-sQC, and TG270-ULN patterns. · github.com, 8 Oct 2026
- Support
- Users can report bugs through GitHub Issues and contact the maintainer by email at nick 'at' pacsdisplay.org. · pacsdisplay.org, 8 Oct 2026
- Uniformity
- The uniLum program collects luminance uniformity measurements and reports deviation from median and mean luminance deviation. · github.com, 8 Oct 2026
Where pacsDisplay stands on Freedom251
- Display Calibration Software#7 of 24