RawTherapee is an application used by photographers to handle files with raw formats such as .arw, .crw, .dng, .mdc and others.
Most photographers prefer raw photos because they are still uncompressed and exposed to minimal digital effects.
This app offers photographers to edit their files by amplifying colors, sharpening focus, or something else.
RawTherapee has excellent performance because it can maximize the features of modern CPUs to speed up the rendering process of high-resolution images.
RawTherapee can export your files to JPG, PNG, TIFF and so on.
How to Install Raw Therapee on Linux Ubuntu and Others
First open a terminal (Ctrl+Alt+T) then type:
sudo add-apt-repository ppa:dhor/myway
Then update the package, how to type
sudo apt update
Finally, install Raw Therapee
sudo apt install rawtherapee