title: Four issues concerning colour constancy and relational colour constancy.
abstract: Four issues concerning colour constancy and relational colour constancy are briefly considered: (1) the equivalence of colour constancy and relational colour constancy; (2) the dependence of relational colour constancy on ratios of cone excitations due to light from different reflecting surfaces, and the association of such ratios with von Kries' coefficient rule; (3) the contribution of chromatic edges to colour constancy and relational colour constancy; and (4) the effects of instruction and observer training. It is suggested that cognitive factors affect colour constancy more than relational colour constancy, which may be an inherently more robust phenomenon.
authors.affiliation: Department of Vision Sciences, Aston University, Birmingham, U.K. D.H.Foster@aston.ac.uk
authors.forename: D H
authors.initials: DH
authors.lastname: Foster
authors.forename: S M
authors.initials: SM
authors.lastname: Nascimento
authors.forename: B J
authors.initials: BJ
authors.lastname: Craven
authors.forename: K J
authors.initials: KJ
authors.lastname: Linnell
authors.forename: F W
authors.initials: FW
authors.lastname: Cornelissen
authors.forename: E
authors.initials: E
authors.lastname: Brenner
mesh_terms: D003118:Color Perception / Q000502:physiology*; D004192:Discrimination, Psychological / Q000502:physiology; D005133:Eye Movements; D006801:Humans; D007858:Learning; D008027:Light; D013053:Spectrophotometry