detect colors
detect colors
(OP)
i have to build a circuit and that will detect the 8 basics colors. Any help would be appreciated.
thanks,
thanks,
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RE: detect colors
Are you trying to build a spectrum analyzer?
why 8? ROYGBIV gives 7
how much money do you have to spend?
TTFN
RE: detect colors
i want to make it cheap, less than 10 dollars
i want to use in a manufacturing arm to detect different color pieces.
RE: detect colors
study up on color theory. "pink" and "brown" are not a colors of monochromatic light, but are combinations of different wavelengths. study up on the CIE color map and tristimulus theory. Find a copy of ISO-10526, "CIE standard illuminants for colorimetry"
if you think you can do it for 10 dollars, good luck. In order to accurately measure color, you'll need to have 3 accurately calibrated tristimulus detectors or a decently calibrated spectrophotometer, in addition to at least one calibrated illuminant, none of which are even individually available at the price you state.
You might be able to get by with a color CCD and reference targets and use some image processing to compare sample to reference. Even this will cost you at least $30 for even the cheesiest web cam and you'll still need to get a stable and relevant light source.
TTFN
RE: detect colors
RE: detect colors
TTFN
RE: detect colors
http://www.e-insite.net/ednmag/archives/1998/060498/12di.pdf
etc. for more info
RE: detect colors