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Can trackbar values be sent from another device?

asked 2016-06-17 09:34:51 -0500

YaddyVirus gravatar image

I have made a traffic light detection algorithm with OpenCV and Python. My script has some trackbars which I need to adjust and see the output to set a desired stage.

My script runs on my Raspberry Pi, is there any way I can send the trackbar values from another device on the same network on the RPi? For example, maybe make a phone app (I use Windows Phone BTW) which sends the trackbar data to the script and shows the output on my phone screen.

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answered 2016-06-17 09:52:31 -0500

berak gravatar image

updated 2016-06-17 09:59:39 -0500

sure:

>>> help(cv2.setTrackbarPos)
Help on built-in function setTrackbarPos:

setTrackbarPos(...)
    setTrackbarPos(trackbarname, winname, pos) -> None

so just send your values to your script (e.g, via sockets or bluetooth), and call cv2.setTrackbarPos() once you receive something

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Call each value by a separate name and hence call the respective trackbar.. sweet! But how do I see the script's output on my screen?

YaddyVirus gravatar imageYaddyVirus ( 2016-06-17 10:10:10 -0500 )edit

send an image back ? noo idea. (and this is far beyond the scope of this site...)

berak gravatar imageberak ( 2016-06-17 10:18:46 -0500 )edit
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Asked: 2016-06-17 09:34:51 -0500

Seen: 93 times

Last updated: Jun 17 '16