Let's call this directory 'source_dir' (where this INSTALL file is). Before starting, create another directory which we will call 'build_dir'.
The "make install" step may require administrator privileges.
You can adjust the installation destination (the "prefix") by passing the -DCMAKE_INSTALL_PREFIX=myprefix option to cmake, as is explained in the message that cmake prints at the end.
If you have a manifest file which lists all the files that were installed with make install you can run this command which I have from another answer:
cat install_manifest.txt | xargs echo rm | sh
If you have sudo make install you will need to add a sudo to your uninstall:
cat install_manifest.txt | xargs echo sudo rm | sh