Photomatix for Linux version 1.1 is currently in beta testing. If you are interested in helping us test it, you are welcome to download the beta from this page.
To install Photomatix:
If you prefer to install via the command-line, or installing with the instructions above didn't work, you have two other options for installing Photomatix. First, open a terminal window, then do one of the following:
If you have gdebi installed, you can install using this command:
sudo gdebi /path/to/downloaded-file.deb
Otherwise, you can use this command:
dpkg -i /path/to/downloaded-file.deb
Then if there are any errors about unresolved dependencies:
sudo apt-get install -f
If you haven't taken bracketed photos yet, you are welcome to download these samples:
See how to set up Automatic Exposure Bracketing (AEB) on various camera models.