Colour appearance and colour rendering of HDR scenes: an experiment

Parraman, C., McCann, J. and Rizzi, A. (2010) Colour appearance and colour rendering of HDR scenes: an experiment. In: IS&T/SPIE Electronic Imaging conference , San Jose, USA, 17-21 January 2010. Available from:

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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 compared side by side. Each scene was subjected to different lighting conditions. First, we used an illumination cube to diffuse the light and illuminate all the objects from each direction. This produced a low-dynamicrange (LDR) image of the 3-D Mondrian scene. Second, in order to make a high-dynamic range (HDR) image of the same objects, we used a directional 150W spotlight and an array of WLEDs assembled in a flashlight. The scenes were significant as each contained exactly the same three-dimensional painted colour blocks that were arranged in the same position in the still life. The blocks comprised 6 hue colours and 5 tones from white to black. Participants from the CREATE project were asked to consider the change in the appearance of a selection of colours according to lightness, hue, and chroma, and to rate how the change in illumination affected appearance. We measured the light coming to the eye from still-life surfaces with a colorimeter (Yxy). We captured the scene radiance using multiple exposures with a number of different cameras. We have begun a programme of digital image processing of these scene capture methods. This multi-disciplinary programme continues until 2010, so this paper is an interim report on the initial phases and a description of the ongoing project.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:appearance of coloured objects in a three-dimensional scene
Faculty/Department:Faculty of Arts, Creative Industries and Education
ID Code:6991
Deposited By: J. Montgomery
Deposited On:19 Apr 2010 12:28
Last Modified:26 Apr 2016 03:26

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