oration: underline;'>master-branch</span></a><span>. If you downloaded either a release or master branch archive, you need  to extract the contents to the folder of your choosing. Alternatively,  if you are using MATLAB, you can download the mltbx package (</span><span style=' font-family: monospace;'>OMEGA.-.Open-source.MATLAB.emission.tomography.software.mltbx</span><span>) from the </span><a href = "https://github.com/villekf/OMEGA/releases"><span style=' text-decoration: underline;'>releases</span></a><