About DSSIM
This tool computes (dis)similarity between two or more PNG &/or JPEG images using an algorithm approximating human vision. Comparison is done using a variant of the SSIM algorithm.
DSSIM 3.4.0
Image similarity comparison simulating human perception (multiscale SSIM in Rust)
- By Kornel
- Open Source
- Portable
- Updated Mar 5, 2025
What's new in 3.4.0
The Lab color space conversion requires a cube root (3× per pixel even), which is expensive to compute in a general case. Fortunately, the range required by Lab can be computed more efficiently.
The zip has macOS and Windows binaries.
Technical details
| Publisher | Kornel |
|---|---|
| Version | 3.4.0 |
| Release date | 2025-03-05 |
| License | AGPL-3.0 |
| Installer type | zip |
| Architecture | x64 |
| Package ID | Kornelski.DSSIM |
| Dependencies | Microsoft.VCRedist.2015+.x64 |
Install DSSIM from the command line
- Install with Windows Package Manager
winget install --id=Kornelski.DSSIM -e- Update to the latest version
winget upgrade --id=Kornelski.DSSIM -e- Uninstall
winget uninstall --id=Kornelski.DSSIM -e
DSSIM adds this command to the command line: dssim.
DSSIM version history
3.2.3 Sep 18, 2022
Frequently asked questions
Is DSSIM free?
Yes. DSSIM is free and open-source software released under the AGPL-3.0 license.
What is the latest version of DSSIM?
The latest version is 3.4.0, released on Mar 5, 2025.
Is it safe to download DSSIM?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with c9cb7089a62fd8c2655e778fc576d9f1f453eb3ecfb98bb6914f1ff086ceda4c.
Which Windows versions does DSSIM support?
DSSIM runs on Windows and is available for 64-bit (x64) systems.
How do I uninstall DSSIM?
Open Settings › Apps › Installed apps, find DSSIM and select Uninstall. From the command line, run winget uninstall --id=Kornelski.DSSIM -e.
Is there a portable version of DSSIM?
Yes. DSSIM is available as a portable ZIP archive (dssim-3.4.0.zip, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.
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