Colour

• Demystifying Colour (i) : visible colour
• Demystifying Colour (ii) : the basics of colour perception
• Demystifying Colour (iii) : colour models and spaces
• Demystifying colour (iv) : RGB colour model
• Demystifying Colour (ix) : CIE chromaticity diagram
• Demystifying Colour (v) : colour gamuts
• Demystifying Colour (vi) : Additive vs. subtractive
• Demystifying colour (vii) : sRGB vs. Adobe RGB
• Demystifying Colour (viii) : CIE colour model
• Every colour photograph is a manipulation of the truth
• How do we perceive photographs?
• Photography and colour deficiency
• The perception of enhanced colour images
• The realization of colour
• What is an RGB colour image?

Image Histograms

• Image histograms tell a story
• the histogram exposed (i) – unimodal
• the histogram exposed (ii) – highlight-clipping
• the histogram exposed (iii) – bimodal
• the histogram exposed (iv) – multipeak-unimodal
• the histogram exposed (v) – indistinct
• the histogram exposed (vi) – multipeak
• the image histogram (i) – what is it?
• the image histogram (ii) – grayscale vs colour
• the image histogram (iii) – useful information
• the image histogram (iv) – shape
• the image histogram (v) – tone
• the image histogram (vi) – contrast and clipping
• the image histogram (vii) – log histograms
• Why are there no 3D colour histograms?

Image Enhancement

• The early days of image processing : the 1960s lunar probes
• The early days of image processing: To Mars and beyond
• the image histogram (i) – what is it?
• the image histogram (ii) – grayscale vs colour
• the image histogram (iii) – useful information
• the image histogram (iv) – shape
• the image histogram (v) – tone
• the image histogram (vi) – contrast and clipping
• the image histogram (vii) – log histograms
• The Retinex algorithm for beautifying pictures

Image Sharpening