Tracking light objets. Help!

Nov 22, 2010 at 10:59pm

Tracking light objets. Help!

Hi all,
i’m trying to sense with a webcam of a laser light movement on a wall
i’m using the [jit.findbounds] object for tracking light
Someone know of better objets (or external, etc.) to solve it?

Thank you very much!

yammmil

#53487
Nov 23, 2010 at 4:55am

Check out my example here: http://blairneal.com/blog/jitter-example-lightpainting/

also check out the cv.jit suite of object available here: http://jmpelletier.com/cvjit/

#192404
Nov 24, 2010 at 9:46pm

Hi laserpilot,
Thank you! Very interesting patch! i’m studing a lot.

A question relating to the object: [jit.op @op >= >= >= >= @val 0.]
What are the differences between to use 4 equal operators (multi op) , or to use only one?

[jit.op @op >= >= >= >= @val 0.] or [jit.op @op >= @val 0.]

for me, the result would be the same in both cases

Thank again!

#192405
Nov 24, 2010 at 10:17pm

I forget my original reasoning for that since that project is a couple years old now. I think it was just reassuring me that I’m doing it for all of the color channels ARGB. In other cases you would use 4 different operators to do different things on the color channels, but in this case since they’re all the same it doesn’t really matter.

#192406
Nov 26, 2010 at 12:18am

Thank laserpilot ;)

#192407

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