Pixel and spatial mechanisms of colour constancy

Parraman, Carinna; McCann, John; Rizzi, Alessandro

Abstract

Colour constancy remains an important subject of research on colour standards, computer imaging, and human color vision. There are many different theories and algorithms that interpret and predict constancy. This paper analyzes three different approaches that are frequently discussed separately in the literature: pixel-based colorimetric standards of appearance; computer imaging calculations of an object's reflectance; and calculation of appearance using spatial comparisons. This paper compares and contrasts these approaches. Further, it reviews experiments that measure appearance in colour constancy in a variety of situations. A pivotal tool in analyzing models of constancy is the correlation of object's reflectance with appearance. Each approach has different interpretation of this correlation. Using measurements of constancy with particular attention to reflectance, illumination, and appearance helps us to see the successes and limitations of each constancy approach.

Citation

Parraman, C., McCann, J., & Rizzi, A. (2010, January). Pixel and spatial mechanisms of colour constancy. Paper presented at IS&T/SPIE Electronic Imaging conference, San Jose, USA

• Presentation Conference Type: Conference Paper (unpublished)
• Conference Name: IS&T/SPIE Electronic Imaging conference
• Conference Location: San Jose, USA
• Start Date: Jan 17, 2010
• End Date: Jan 21, 2010
• Publication Date: Jan 1, 2010
• Peer Reviewed: Peer Reviewed
• Keywords: colour standards, computer imaging, and human color vision
• Public URL: https://uwe-repository.worktribe.com/output/982426
• Publisher URL: http://dx.doi.org/10.1117/12.838736
• Related Public URLs: http://spie.org/app/profiles/viewer.aspx?profile=KCCCBN