RawTherapee is a wonderful image processing software with very good user interface. It is very useful tool for converting RAW image files produced by DSLR cameras to JPEG format. It allows us to apply a lot of fine adjustments to a RAW image and convert to JPEG, PNG or TIFF. I prefer to take images in RAW format rather than directly in JPEG. By this post I am trying to help people taking images in RAW format with their Nikon D5300 camera and using Ubuntu 14.04 as their OS.