Outputs (37)

Pixel and spatial mechanisms of color constancy (2010)
Journal Article
Rizzi, A., McCann, J. J., & Parraman, C. (2010). Pixel and spatial mechanisms of color constancy. Proceedings of SPIE, 7528, https://doi.org/10.1117/12.838736

Color constancy remains an important subject of research on color standards, computer imaging, and human color vision. There are many different theories and algorithms that interpret and predict constancy. This paper analyzes three different approach... Read More about Pixel and spatial mechanisms of color constancy.

Spatial image processing for the enhancement and restoration of film, photography and print (2010)
Presentation / Conference
Parraman, C., & Rizzi, A. (2010, March). Spatial image processing for the enhancement and restoration of film, photography and print. Paper presented at 7th International Conference on Informatics and Systems, Faculty of Computers and Information, Cairo University

This paper presents a review of research undertaken into algorithms for colour enhancement methods based on the behaviour of the human vision system and the applied research in film, photography and print. These colour enhancements methods perform au... Read More about Spatial image processing for the enhancement and restoration of film, photography and print.

Colour appearance and colour rendering of HDR scenes: an experiment (2010)
Presentation / Conference
Parraman, C., McCann, J., & Rizzi, A. (2010, January). Colour appearance and colour rendering of HDR scenes: an experiment. Paper presented at IS&T/SPIE Electronic Imaging conference, San Jose, USA

In order to gain a deeper understanding of the appearance of coloured objects in a three-dimensional scene, the research introduces a multidisciplinary experimental approach. The experiment employed two identical 3-D Mondrians, which were viewed and... Read More about Colour appearance and colour rendering of HDR scenes: an experiment.

The development of artists' novel colour palettes for inkjet printing (2010)
Presentation / Conference
Parraman, C. (2010, January). The development of artists' novel colour palettes for inkjet printing. Paper presented at IS&T/SPIE Electronic Imaging conference, San Jose, USA

In this changing environment in which the artist and designer has access to a wide range of digital imaging tools and technologies, that on first glance, are dedicated to the creation of colour mixtures, why is the digital interface and colour outcom... Read More about The development of artists' novel colour palettes for inkjet printing.

Pixel and spatial mechanisms of colour constancy (2010)
Presentation / Conference
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

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 approa... Read More about Pixel and spatial mechanisms of colour constancy.

Artist's colour rendering of HDR scenes in 3D Mondrian colour-constancy experiments (2010)
Presentation / Conference
Parraman, C., McCann, J., & Rizzi, A. (2010, January). Artist's colour rendering of HDR scenes in 3D Mondrian colour-constancy experiments. Paper presented at IS&T/SPIE Electronic Imaging conference, San Jose, USA

The presentation provides an update on ongoing research using three-dimensional Colour Mondrians. Two still life arrangements comprising hand-painted coloured blocks of 11 different colours were subjected to two different lighting conditions of a nea... Read More about Artist's colour rendering of HDR scenes in 3D Mondrian colour-constancy experiments.

Measuring colour constancy and colour appearance: An experiment (2009)
Presentation / Conference
Rizzi, A., Parraman, C., & McCann, J. (2009, November). Measuring colour constancy and colour appearance: An experiment. Paper presented at MINET (Measuring the Impossible Network) Conference: Measurement, sensation and cognition, National Physical Laboratory, London

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 cons... Read More about Measuring colour constancy and colour appearance: An experiment.

Reflectance, illumination and edges (2009)
Presentation / Conference
McCann, J., Parraman, C., & Rizzi, A. (2009, November). Reflectance, illumination and edges. Paper presented at Seventeenth Color Imaging Conference: Color Science and Engineering Systems, Technologies, and Applications, Albuquerque, New Mexico

We studied color constancy using a pair of 3-D Color Mondrian displays made of two identical sets of painted wooden shapes. There are only 6-chromatic, and 5-achromatic paints applied to nearly 100 block facets. The three-dimensional nature of these... Read More about Reflectance, illumination and edges.

Reflectance, illumination, and edges in 3-D Mondrian colourconstancy experiments (2009)
Presentation / Conference
McCann, J., Parraman, C., & Rizzi, A. (2009, September). Reflectance, illumination, and edges in 3-D Mondrian colourconstancy experiments. Paper presented at 11th Congress of the International Colour Association (AIC) 2009, University of New South Wales, Sydney, Australia

AIC 2009 Proceedings published as CD-Rom Proceedings of the 11th Congress of the International Colour Association (AIC 2009), edited by Dianne Smith, Paul Green-Armytage, Margaret A. Pope and Nick Harkness. CD. Sydney: Colour Society of Australia

Does this look right? The science of colour appearance in art (2009)
Presentation / Conference
Parraman, C. (2009, June). Does this look right? The science of colour appearance in art. Presented at Science Café, Explore, Bristol

Invited lecture for Science Café given at Explore, At-Bristol, 9 June 2009. Have you considered why the swatch colour you take to the paint shop appears very different to the final painted wall? Differences between how a colour is measured and how... Read More about Does this look right? The science of colour appearance in art.