Policy on Intellectual Property Right (IPR)
1 Introduction
2 Simple conversion from BT.2020 to BT.709 based on linear matrix
transformation
2.1 Non-linear to linear conversion (N to L)
2.2 Matrix (M)
2.3 Linear to non-linear conversion (L to N)
2.4 Practical limitations
3 Principles of gamut mapping
4 Conclusion
Annex 1
A1.1 Hue mapping
A1.2 Lightness mapping
A1.3 Chroma mapping
A1.4 Practical remarks
A1.5 Experimental results
A1.6 Conclusion
Annex 2
A2.1 Selection of colour appearance model
A2.2 Constant perceived hue in Recommendation ITU-R BT.2020 gamut
A2.3 Mapping algorithm
A2.4 Lightness mapping
A2.5 Hue mapping
A2.6 Image quality
A2.7 Implementation
Annex 3
Annex 4
A4.1 Adaptive gamut mapping framework
A4.1.1 Colour space conversion
A4.1.2 Hue alignment
A4.1.3 Chrominance mapping with lightness constraint
A4.2 Additional considerations for improved gamut mapping
A4.2.1 Uniform colour space based on CIECAM02
A4.2.2 Content colour gamut
A4.3 Experimental results
A4.3.1 Experimental result of adaptive gamut mapping
framework
A4.3.2 Effect of uniform colour space based on CIECAM02
A4.3.3 Effect of content colour gamut
A4.4 Conclusion
Annex 5
A5.1 Colorimetric colour spaces
A5.2 Conversion between colour spaces
A5.3 Luminance-preserving conversion
A5.4 Effective gamut at given luminance
A5.5 Reversible soft-clipping
A5.6 Algorithm
A5.7 Results
A5.8 Conclusion
Annex 6
A6.1 Introduction
A6.2 Mastering colour gamut information
A6.3 Conversion method
A6.4 Results
A6.5 Conclusions