Posts: 11
Joined: Tue Sep 11, 2012 12:23 pm

Re: OpenCV on the Raspberry Pi

Sat Sep 15, 2012 12:22 pm

eduardofv wrote:I've just got OpenCV running on the rpi. Hope this guide helps: ... spberry-Pi

I tried to install opencv on raspberry pi. But I can't make it.

Please help me.

Posts: 17
Joined: Sun Jun 10, 2012 11:05 am
Location: Southport, Merseyside, UK
Contact: Website

Re: OpenCV on the Raspberry Pi

Tue Sep 18, 2012 6:53 pm

I've pretty much given up on trying to use a webcam with a Raspberry PI.

I can get a webcam working but the frame rate even with the resolution down to 140x120 (or something equally as poor) never goes above 6 fps. Which is the best I've had running but generally it's more like 2 fps when you try outputting the image or detecting motion (not using OpenCv).

I've tried a number of different webcams with no improvement. DIY powered hubs, expensive purchased powered hubs. Nothing improves the situation.

I've just stuck my Pi under the bed and I'm waiting for the official Pi cam to come out.

Posts: 1
Joined: Mon Jul 30, 2012 8:34 pm

Re: OpenCV on the Raspberry Pi

Thu Oct 04, 2012 12:24 pm

My contribution:
RaspberryPi + webcam + OpenCV facedetect ... facedetect
I need enhance response time for camera capture and facedetection, it's to high, greater than 6000ms,
any suggestions?
Thanks in adance

Posts: 29
Joined: Tue May 22, 2012 2:58 pm

Re: OpenCV on the Raspberry Pi

Thu Oct 04, 2012 1:50 pm

Best suggestion I can think of, wait for the CSI camera ;). On the OpenCV side, I don't know it well enough, but I guess that some parameters may be tweaked to make FD faster

Posts: 2
Joined: Sat Nov 16, 2013 6:35 pm

Re: OpenCV on the Raspberry Pi

Sat Nov 16, 2013 6:40 pm

If anyone wants to work on the PI with the PI cam and opencv + v4l , I wrote a tutorial on how to cross compile Qt with opencv and v4l for the PI cam and added a smale example project.
You can find it here: ... agle-bone/

Posts: 1
Joined: Fri Nov 22, 2013 5:49 pm

Re: OpenCV on the Raspberry Pi

Fri Nov 22, 2013 6:39 pm

I started making a game console with the pi that tracks motion with a camera and then does something in a game . I got this working on a Windows laptop using OpenCV and
I'm now working on getting it on the pi. Does somebody know if the pi camera module will
work with it? And also does anyone know how to get it to be faster and not take that much
process power . The current code trains a class (or a set of classes ) and then constantly
looks for them in the live video stream. This is good for a powerful machine as you can
calibrate it to look for everything ( including a dead mouse for the cat door project ) but would probably be too much for the pi.
Thanks a lot,

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