Theta HDR: utility to capture HDR spherical panoramas using Ricoh Theta cameras on Linux. The utility was developed and tested with a Theta V connected via USB. Pull requests to make it compatible with PTP over WiFi or other versions of the camera are very welcome.
The utility uses gphoto2 which talks to the Theta camera by means of the PTP protocol. Some very useful information is found here: http://codetricity.github.io/theta-s/usb.html