Measuring colour constancy and colour appearance: An experiment

Rizzi, Alessandro; Parraman, Carinna; McCann, John

Abstract

Paper given at Perception and Sensation Session 3.
Colour sensation does not depend strictly of the light signal conveying colour information, but also depends on the arrangement of the visual array of all signals coming from the scene. Colour constancy is one aspect that contributes to the Human Vision System (HVS) in the formation of colour appearance. In the digital-imaging field the concept of colour consistency is often related with a process of trying to identify the object's reflectance and illumination. One could separate the reflectance component from the illuminant component, by discounting the illuminant. Although this is claimed to be a useful operation for several applications in computer vision, it is not an accurate description of our human colour appearance mechanisim.

• Presentation Conference Type: Conference Paper (unpublished)
• Conference Name: MINET (Measuring the Impossible Network) Conference: Measurement, sensation and cognition
• Start Date: Nov 10, 2009
• End Date: Nov 12, 2009
• Peer Reviewed: Not Peer Reviewed
• Keywords: Colour science
• Public URL: https://uwe-repository.worktribe.com/output/1005458
• Related Public URLs: http://resource.npl.co.uk/minet/ws4/Digest.pdf