1. Digital Colour Theory

2. What is colour theory? It is the theory behind colour mixing and colour combination.

6. CMYK Colour Model For printers Subtractive colour model Composite Black Process Black

7. RGB Colour Model For screens Additive colour model

12. RGB in Digital Imaging The colour of each pixel in a digital image is made up of RGB

13. Example of a True Colour Image Bit-depth = 24-bits – 8-bits > Red – 8-bits > Green – 8-bits > Blue

14. Example of a True Colour Image 8 bits = 256 colours – 256 Red intensities – 256 Green intensities – 256 Blue intensities

15. Example of a True Colour Image 256 x 256 x 256 = 16.7 million colours

16. How do we numerically represent RGB colours?

17. What is hexadecimal? Decimal: Base-10 – 0123456789 Binary: Base-2 – 01 Hexadecimal: Base-16 – 0123456789ABCDEF

18. #FF0000

19. Why we use hexadecimal? It is more user friendly when compared to binary. Example of the colour Red 11111111 00000000 00000000 FF 00 00

21. What is HSB?

23. What is a Colour Gamut?

24. What is Gamut Conversion?