In this piece, I used a greyscale colourization technique. ‘Colourization technique’ is a computer-assisted process of adding colour to a monochrome image or movie. The process typically involves segmenting images into regions and tracking these regions across image sequences. Neither of these tasks can be performed reliably in practice; consequently, colourization requires considerable user intervention and remains a tedious, time-consuming, and expensive task (reference: http://www.cs.huji.ac.il/~alevin/papers/colorization-siggraph04.pdf). This technique is very useful because it saves time and is a very easy technique since we’re only focusing on the shape, not the colours. Firstly, I always begin by filling in the background layers with a colour. For this piece, I started with this dark grey Dark grey (Fig.01).
LINK:
http://www.3dtotal.com/team/Tutorials_3/makingof_beautiful/beautiful_01.asp