Colour grading refers to the process of altering and enhancing the colour of a motion picture, video image or still image either electronically, photo-chemically or digitally. In form of a photo-chemical process, it is also referred to as colour timing and is typically performed at a photographic laboratory. Modern colour correction, whether for theatrical film, video distribution, or print is habitually performed digitally in a colour suite. Considering such achievements in digital imaging, the artist has the ability to "paint" the image, thus the names "colourist" or "colour painter" have become popular.