Wednesday 29 October 2008

RGB vs CMYK. Introduction to colour management.

READINGS I HAVE DONE ON COLOUR.

HOW TO DO EVERYTHING WITH PHOTOSHOP, COLIN SMITH.
















(UNDERSTANDING COLOUR MANAGEMENT BY ABHAY SHARMA)

Colour management allows users to control and adjust colour when images are reproduced on different devices and media. Colour management is not a trvial subject to understand. Colour management is usually based on profiles that conform to the internationally accepted ICC profile specification. Therefore, it relies on fairly advanced colour science and imaging concepts. 
Colour management has a beauty and simplicity. It is astounding to see the results from a good colour management sytem. 
WHY DOES IT NEEDS EXPLAING?
Colour is perceived by the eye-brain visual system, and our response to colour it based on a number of factors, including such diverse things as the room lighting, what is in the scene, and the mood or age of the obeserver. Colour is a coplex phenomenon. 

COLOUR BY DAVID HORNUG 

We see colour whenever we open our eyes in a lighted space, and colour contrast makes things visible. We perceive qualities like roundness, relative distance, and texture though the brain's inconscious and instantaneous decoding of myriad patches of colour. 

Colour is said to be contained within light, but the perception of colour actually takes place in the mind. As waves of light are recieved in the lens of the eye, they are interpretated by brain as colour. 

GETTING IT RIGHT IN PRINT MARK GATTER

The first thing we need to understand is that RGB refers to different colours of light, whereas CMYK refers to different colours of pigment....