Most of us probably never leave the realm of editing our images in a regular RGB colour space. But many applications also allow you the option to edit your images using Lab colour. What is Lab colour? How do we use it? and how does it benefit us?
Aurélien Pierre, developer of filmic module for the open-source editing software Darktable, recently put together a massive article (English version) covering everything you need to know about working in Lab colour. And while some of the steps might be specific to Darktable, the principles can be applied to many different editing applications.