To start up Photo4D, perform one of the following commands, depending on your platform.
photo4d 'Enter'
Before starting up the Photo4D program, make sure the environment variable "PHOTO4DDIR" has been set to the installation directory. For example, put the following line in .cshrc when you are using csh
setenv PHOTO4DDIR /usr/local/photo4d
if the software is installed under /usr/local/photo4d
If Photo4D is installed correctly, the Main Window will appear.