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A Physically Based Colour Model
Author(s) -
Oddy Robert J.,
Willis Philip J.
Publication year - 1991
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/1467-8659.1020121
Subject(s) - compositing , computer science , computer graphics (images) , animation , opacity , graphics , overlay , simple (philosophy) , mixing (physics) , computer graphics , artificial intelligence , programming language , image (mathematics) , philosophy , optics , physics , epistemology , quantum mechanics
We propose an intuitively simple way of representing colour which has the additional virtue that, it permits mixing and overlaying of transparent and opaque paints to an arbitrary degree. Our approach is related to the earlier alpha channel model used for compositing. It includes this as a special case but has applications in many other areas, especially animation, paint programs and graphics libraries.