Color Matching
Color Matching
(OP)
I was wondering if its possible to make a camera or camcorder that could take a picture of a color, recognize it and match it to the same color in a database of colors?
thank you.
thank you.
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RE: Color Matching
But otherwise yes! Certainly. There are a bunch of gotchas involved though. The most important is that every thing's "color" is a function of the local illumination. Illumination can be quite complex. Normally if you want to do color studies you try to do it under strictly controlled lighting. Industry will have lighting booths that have specific lighting often left on to keep lamp aging etc., constant and predictable.
A standard method is to have a graded color card. You use your system to capture it. (It will have many different color blocks on it) Then you compare your unknown with those results.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Color Matching
RE: Color Matching
Maybe you are confusing WB (White Balance). With most digital cameras you can execute a WB calibration. The camera always subtracts a white balance frame from a shot after it is taken. The WB frame is normally fixed from the factory based on some common standards of illumination. So the average camera has settings like DAYLIGHT, FLUORESCENT, OVERCAST, which are 'assumed' WB frames. You can also do a better job by showing the camera a pure white surface in the exact lighting you wish to photograph in. It then uses that as the WB frame. This will then allow a better final color match in any photos subsequently taken in that same lighting.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Color Matching
thank you I apreciate the response.
RE: Color Matching
Additionally, you'll need to invest in calibration cards with specific colors whose RBG equivalents are traceable to some standards. Your typical camera's RGB filters are not guaranteed to meet any color accuracy criteria.
TTFN
RE: Color Matching
m777182