Kyle,
Minolta CM-2002 Spectrophotometer works well to measure color and reflectance but it is rather an expensive equipment (even just for lease). Last time I used it, I compared the measurement values with the results I achieved using Macbeth chart and macbethcal (http://radsite.lbl.gov/radiance/man_html/macbethcal.1.html) and the results were very close.
As Greg mentioned, the photographs of the sample and Macbeth chart should be taken under stable and uniform lighting conditions.
Mehlika
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On Wed, 29 Jan 2014, Kyle Konis wrote:
Dear list,
I plan to build several radiance models of Alzheimer care facilities in preparation for a field study examining daylight exposures and cognitive / health outcomes in
partnership with a colleague in health sciences.The radiance work is intended to supplement the data collected from physical sensors to provide greater insight into 24-hour patters of light / dark.
I would like to measure the surface optical properties (color,� reflectance) of the walls / ceilings and floors etc.
I am aware of two devices that have been used to do this.
1) The first is the X-rite Colormunki (actual name of product) that Michael Donn was using while visiting LBNL.
The second is the Minolta CM-2002 Spectrophotometer used by Mehlika Inanici.
http://faculty.washington.edu/inanici/Publications/mi-luekos2010.pdfIf anyone has experience with this task who can provide some comments on their approach it would be appreciated. (Michael and Mehlika, i will likely contact you
directly!).Best,
-Kyle
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Kyle Konis, AIA, Ph.D
Assistant Professor
School of Architecture, WAH 204
University of Southern California
Los Angeles, CA 90089-0291
http://arch.usc.edu/faculty/kkonis
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