Computational Colour Science Using MATLAB

Stephen Westland was awarded his BSc and PhD from the University of Leeds. In 1986 he joined Courtaulds Research as a Colour Physicist before returning to academia in 1990 to work at the University of Keele. He worked as a post-doctoral researcher and lecturer in the Department of Communication and Neuroscience where he taught and researched colour measurement, human colour vision, computational imaging and image processing. In 1990 he was appointed as a Reader in Colour Imaging at the Colour Imaging Institute of the University of Derby. He was appointed as Professor of Colour Science and Technology in the School of Design at the University of Leeds in 2003 where he currently teaches and researches. He has published more than 100 refereed papers in the areas of colour imaging, colour management, colour physics and colour design. He has been active in professional bodies that are concerned with colour. He is an active participant in conferences organised by the Society of Imaging Society and Technology and served on several organizational and technical committees. In 2008 he was awarded a Fellowship of the Society of Dyers and Colourists and the Davies Medal from the Royal Photographic Society for his research on digital colour imaging. Caterina Ripamonti is the author of Computational Colour Science Using MATLAB, published by Wiley.

Acknowledgements. 1. Introduction. 1.1 Who this book is for. 1.2 Why base this book on MATLAB? 1.3 A brief review of the CIE system of colorimetry. 2. Linear Algebra for Beginners. 2.1 Some basic definitions. 2.2 Solving systems of simultaneous equations. 2.3 Transposes and inverses. 2.4 Linear and non-linear transforms. 3. A Short Introduction to MATLAB. 3.1 Matrix operations. 3.2 Computing the transpose and inverse of matrices. 3.3 M-files. 3.4 Using functions in MATLAB. 4. Computing CIE Tristimulus Values. 4.1 Introduction. 4.2 Standard colour-matching functions. 4.3 Interpolation methods. 4.4 Extrapolation methods. 4.5 Tables of weights. 4.6 Correction for spectral bandpass. 4.7 Chromaticity diagrams. 4.8 Implementation and examples. 4.8.1 Spectral bandpass correction. 4.8.2 Reflectance interpolation. 4.8.3 Computing tristimulus values. 4.8.4 Plotting the spectral locus. 5. Computing Colour Difference. 5.1 Introduction. 5.2 CIELAB and CIELUV colour space. 5.3 CIELAB colour difference. 5.4 Optimized colour-difference formulae. 5.4.1 CMC(l:c). 5.4.2 CIE94. 5.4.3 CIEDE2000. 5.5 Implementations and examples. 5.5.1 Computing CIELAB and CIELUV coordinates. 5.5.2 Computing colour difference. 6. Chromatic-adaptation Transforms and Colour Appearance. 6.1 Introduction. 6.2 CATs. 6.2.1 CIECAT94. 6.2.2 CMCCAT97. 6.2.3 CMCCAT2000. 6.3 CAMs. 6.3.1 CIECAM97s. 6.3.2 CMCCAM2000. 6.4 Implementations and examples. 6.4.1 CATs. 6.4.2 Computing colour appearance. 7. Characterization of Computer Displays. 7.1 Introduction. 7.2 Gamma. 7.3 The GOG model. 7.4 Device-independent transformation. 7.5 Typical characterization procedure. 7.6 Implementations and examples. 8. Characterization of Cameras. 8.1 Introduction. 8.2 Correction for non-linearity. 8.3 Device-independent representation. 8.4 Implementations and examples. 9. Characterization of Printers. 9.1 Introduction. 9.2 Physical models. 9.3 Neural networks. 9.4 Characterization of half-tone printers. 9.4.1 Correction for non-linearity. 9.4.2 Device-independent representation. 9.4.3 The Kubelka-Munk model. 9.5 Implementations and examples. 9.5.1 Half-tone printer. 9.5.2 Continuous-tone printer. 10. Multispectral Imaging. 10.1 Introduction. 10.2 Computational colour constancy and linear models. 10.3 Surface and illuminant estimation algorithms. 10.4 Techniques for multispectral imaging. 10.4.1 The Hardeberg method. 10.4.2 The Imai and Berns method. 10.4.3 Methods based on maximum smoothness. 10.5 Implementations and examples. 10.5.1 Deriving a set of basis functions. 10.5.2 Representation of reflectance spectra in a linear model. 10.5.3 Estimation of reflectance spectra from tristimulus values. 10.5.4 Estimation of reflectance spectra from camera responses. 10.5.5 Fourier operations on reflectance spectra. 11. Colour Toolbox. 11.1 cband.m (Box 1). 11.2 pinterp.m (Box 2). 11.3 r2xyz.m (Box 3). 11.4 plocus.m (Box 4). 11.5 xyz2lab.m (Box 5). 11.6 lab2xyz.m (Box 6). 11.7 xyz2luv.m (Box 7). 11.8 car2pol.m (Box 8). 11.9 pol2car (Box 9). 11.10 cielabde.m (Box 10). 11.11 dhpolarity (Box 11). 11.12 cmcde.m (Box 12). 11.13 cie94de.m (Box 13). 11.14 cie00de.m (Box 14). 11.15 cmccat97.m (Box 15). 11.16 cmccat00.m (Box 16). 11.17 ciecam97s.m (Box 17). 11.18 gogtest.m (Box 18). 11.19 compgog.m (Box 19). 11.20 rgb2xyz.m (Box 20). 11.21 xyz2rgb.m (Box 21). 11.22 compigog (Box 22). 11.23 getlincam.m (Box 23). 11.24 lincam (Box 24). 11.25 gettrc (Box 25). 11.26 r2xyz (Box 26). References. Index.