OpenCV on RPi2?

I have a friend that's attempting to use OpenCV in a project on the RPi2. Has anyone worked with this, on the RPi2? If so, are there shortcomings?

Thanks a head of time,

Tim

0 cstanton over 10 years ago

I know has been working with OpenCV on the Raspberry Pi. The framerate on the B+ / Compute wasn't very good, ultimately, but on the Pi 2 it should be notably better.

You may find it easier to use the Python libraries rather than C or C++, depending on your skillset.
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0 Former Member over 10 years ago in reply to cstanton

Heya Tim,

I haven't yet tried OpenCV on Pi2, I'll try it tonight. Have you got it working on any Raspberry Pi yet? it was a bit slow on the Compute for me but I was using both camera inputs and had a very inefficient algorithm doing the live video editing. So hopefully the Pi2 could be smooth even when using the python libraries, but you'll need to test that.
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0 packetgeek over 10 years ago in reply to Former Member

Callum,

Thanks for responding. Sadly, I don't yet have a RPi2 yet. I do have a CubieTruck and a RIoTboard that I can try it on. The Cubietruck is probably the closest thing that I have to the RPi2 (it's a multi-core A7 chip). Friend wants to use OpenCV to monitor a child, I'd like to attempt gesture recognition with it, hopefully without getting into too much coding. I'll keep notes on whatever I get working.

- Tim
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0 Former Member over 10 years ago in reply to packetgeek

Tim

The only problem that I can even imagine that you might have is if the drivers have changed when Raspbian got updated for the Pi2. The actual hardware shouldn't matter. So if you download the current Raspbian OS onto a micro SD card you could try it on another Pi and then it should work when you get your Pi2.

Callum
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0 packetgeek over 10 years ago in reply to Former Member

Callum,

Thanks!

- Tim
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0 Problemchild over 10 years ago

One think to note is that although the open CV app will almost certainly be faster due to the clock speed bump you will need to make sure the app and the openCV lib is compiled up to use the extra cores.

How much faster does he need ..maybe just moving the OS and other apps and to the other 3 cores will give his app enough puff ? Or will he need to make sure his program threads effectively ?
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0 cstanton over 10 years ago in reply to Problemchild

openCV lib is compiled up to use the extra cores.

Can you share how this is done?
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