[Jared Russell]

Originally Posted by Jared

This is really cool. We were planning on using the kinect, but we haven't had spectacular results in testing when we try it with people walking around in the background.

After playing around with it, I found it really useful to be able to lock the calibration color value so that I could hold a green index card in front of the calibration square, save that calibration value, then use both hands to hold up two cards in the boxes so that I can drop one hand out of the way to signal.

To add the lock-
above the while loop

locked = 0

after the statement in the while loop beginning with cal, left, right

if locked == 1:
            cal = lastCal
        lastCal = cal

at the bottom where the keys are checked

elif key == ord('l'):
            locked = 1
        elif key == ord('u'):
            locked = 0

Pressing l locks the current calibration value, and u resets it to normal.

This is in fact how our original prototype worked, but we switched to continuous on-line calibration because we found that bumping the laptop could throw things off.