Get Simulacrum

This page describes the resources providing the various distributables of Simulacrum; precompiled binaries, headers, full source code and closely related tools.



Simulacrum/Symmetry is provided “as is” and “with all faults.” There are no representations or warranties of any kind concerning the safety, suitability, lack of viruses, inaccuracies, typographical errors, or other harmful components of Simulacrum/Symmetry. There are inherent dangers in the use of any software, and you are solely responsible for determining whether Simulacrum/Symmetry is compatible with your equipment and other software installed on your equipment. You are also solely responsible for the protection of your equipment and backup of your data, and the provider will not be liable for any damages you may suffer in connection with using, modifying, or distributing Simulacrum/Symmetry. Simulacrum/Symmetry is NOT suitable for primary diagnosis. It is neither a CE nor FDA cleared medical device.

Stable Builds


By downloading any of the available software, you are agreeing to the Disclaimer displayed at the top of this page.


The best way to get Symmetry and the latest precompiled libraries for the Android platform is to install/extract them from the current APK on Google Play. Alternatively, you may find the Android APKs here.

Windows (64-bit)

By downloading any of the available software, you are agreeing to the Disclaimer displayed at the top of this page.

Symmetry, dcmtool and SLua are currently, as of 2014-09-09, distributed with Simulacrum in a single Windows installer

Versions Supported

Windows 7 (64-bit), Windows 8 (64-bit Intel/AMD)

Windows distributables can be found at the following URI:

Linux (Ubuntu 14.04)

By downloading any of the available software, you are agreeing to the Disclaimer displayed at the top of this page.

Versions Supported

Ubuntu 14.04 (amd64), probably other amd64 Debian based distributions


The Linux distributables are decomposed into a set of discrete Debian pacakges:

  • libsimulacrum

  • libsimulacrum-dev

  • libsimulacrum-gui

  • libsimulacrum-gui-dev

  • symmetry

  • dcmtool

  • slua

These packages are provided in a convenient repository, making staying up-to-date easy.

To use the repository, two actions must be performed:

  1. security signing public key must be added to the local keyring

  2. repository URI must be added to apt

The security public key can be found here:

And the repository URI:

Quick Start

See here for a guide to adding third-party repositories using the Ubuntu GUI tools.

Run following commands from a console, to add the key and repository:

sudo apt-key add simulacrum.gpg.key
sudo add-apt-repository 'deb trusty main'
sudo apt-get update

Now it should be possible to install one of the packages named above, for example ‘symmetry’:

sudo apt-get install symmetry

Simulacrum libraries and applications will now be kept up-to-date by the system’s package manager, and/or by explicitly updating/upgrading the pacakges installed on the system in the usual manner.

Revision History

Version 1.2.2 – 2015-12-24

  • Core: switchable realloc behaviour for optimised memory use (mostly relevant for Android)

  • Symmetry: date restriction removed

Version 1.2.1 – 2015-06-07

  • DICOM: improvements in handling certain obscure data

  • General: robustness/stability enhancements

Version 1.2.0 – 2015-02-08

  • General stability and robustness improvements

  • DICOM:

    • Better handling of unknown TransferSyntax

    • Adding JPEGLS (r/w), JPEGLossless 8-bit and regular JPEGLossy

  • Full PNG (r/w) support

  • Algorithm performance improvements

  • API additions and improvements, for developers

  • Additional GUI tools (export images, raw data objects, reinterpret extent)

Version 1.1.0 – 2015-01-11

  • Corrections to many serious bugs – too many to enumerate here (upgrade!)

  • Performance enhancements


    • JPEG-8 bit lossless now handled correctly

    • Improved DICOM dictionary lookup tool

  • XML library improvements (now useful to general purpose XML editing/creation)

  • GUI:

    • Support for various LUT schemes in UI

    • ABI changes at this release

Android Only

  • UI improvements

  • Fullscreen mode – no status bar

  • Window-Level LUT – double-tap for auto levelling and histogram

  • Configurable DICOM data home location for quick indexing

  • Advanced tools now available in quick view tab

  • Memory optimisations

Version 1.0.0 – 2014-11-30

Initial release.

Source Code

By downloading any of the available software, you are agreeing to the Disclaimer displayed at the top of this page.

The Simulacrum source code is available on GitLab.

You can find the project here.

You can download the latest snapshot of the development tree directly here.

Development Builds

The latest development builds can be obtained here.

Although not supported and potentially containing faults, development builds provide the latest features and additions to Simulacrum.