Colourspace

• Colour space - How colours are used in an image. 
• Only 3 colours (hues) are used in an image . RGB - Red Green and Blue. 256 tones. 
• a Pixel - A pixel is a small square, every square includes RGB at a different tone/intensity 
• CMYK are the printing colours . Cyan, Magenta, Yellow, and Black. Black is represented as K instead of B, because people could get confused and think it was Blue or Brown. 
• Channels are all the different colours in an image.
• Every printed picture is actually printed 4 times. It is printed Cyan, then Magenta, Then Yellow, Then Black.
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