dcraw software package provides decode raw digital camera images, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install dcraw
dcraw is installed in your system.
Make ensure the dcraw package were installed using the commands given below,
$ sudo dpkg-query -l | grep dcraw *
You will get with dcraw package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Graphics |
| Package | dcraw |
| Version | 8.99-1build1 |
| Description | decode raw digital camera images |
| Sub Section | Graphics |