From: Zoltan Jakab <zjakab@ccs.carleton.ca>
Subject: Surface spectral reflectance measurements
To: cvnet@lawton.ewind.com (Color and Vision Network)
Dear CVNet Readers,
I am a PhD student in Cognitive Science trying to do some experiments that
include measurements of surface spectral reflectances of ordinary colored
surfaces. I have two questions.
1. I know that spectrophotometers are quite expensive, and not many people
have them. I can think of another way of measuring SSRs: placing objects
in monochromatic illumination, and measuring the light reflected by them
by a broadband photodetector. This method sounds a little cumbersome, and
monochromatic illuminators, if they exist at all, may also be quite
expensive (plus the broadband detector, and I may be at the same cost as with
the spectrophotometer). Does anyone know of some other method of SSR
measurement, one that is feasible without such pricy gadgets? How about
broadband detectors equipped with color filters - is that a usable method?
2. Does anyone know whether actually producing reflecting surfaces with
specific SSRs is possible? I think of displaying an SSR curve on my computer
monitor, and then making a reflecting surface that has that SSR?
Thank you for your attention,
Zoltan
Zoltan Jakab
Institute of Interdisciplinary Studies
Carleton University, Ottawa
tel: (613) 520-2600 x 7021
Email: zjakab@ccs.carleton.ca
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