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Unread 25-01-2005, 20:07
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AnkurG AnkurG is offline
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Re: Confused about Camera

Quote:
Originally Posted by cabbagekid2
Hm...our team had the same problem over the weekend. We tried for two days to calibrate the camera! With different types of lighting and different target locations. But no luck. With just the floorescent lighting we could get yellow, but none of the other colors. Then with the halogen work light we could get red but none of the other colors. And we could never get green. Arghh..... This doesn't help us since don't you need all the colors calibrated under the same light conditions that you will run your robot in? Well anyways, back to the question. I noticed that you said you only calibrated green and were able to track green. Is this really true? Do you not need to calibrate all the colors if you just want to track one color? Also, were you tracking the color using the demo mode of the camera or the default camera code given on IFI robotics?

Thanks!
Ya we were tracking our green vision tetra with no problems that we could see except the camera was moving jerkily. All we did was enter the exposure value that we received from the GUI into the camera code and then loaded the camera code onto the OI. Once it was loaded and a joystick was attached to Port 2 (this is a requirement since the trigger needs to be pushed in this port to activate tracking). Once we hit the trigger button it started finding the green on the vision tetra. So I guess you do not need the other color exposure values. And I guess it was the default camera code as well. Currently as I type I am recharging my backup battery (how it dropped voltage I do not know) so I can receive an exposure value for green under our fluorescent lighting.
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