Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [opencv]

Open Source Computer Vision Library, real time computer vision

3
votes
0answers
800 views

Raspicam has low fps for OpenCV

So far, I've tried these tutorials: 1 & 2. I have also attempted to use this code to test it out, and the fps rate is quite low. It's just 2 -3 fps, which is not as high as when I stream via vlc ...
0
votes
0answers
496 views

How to get started with OpenCv on Raspberry-Pi

I have just installed the OpenCV (2.4.8) on my Raspberry-pi working on raspbian using these steps from this blog entry. I can find the cmake in the applications but not the opencv what is the next ...
0
votes
0answers
1k views

Cross-compilation with OpenCV

I'm stuck in cross-compilation my RPi with OpenCV, my project just one file main.cpp and build success in my computer by this tut. I want to run it in RPi. I read this tut but can't understand much, ...
2
votes
1answer
17k views

OpenCV cv2.VideoCapture(0) doesn't work

The question is a bit similar to this question. The main difference is that I'm using a different camera (the Raspberry Pi camera board). I've spend a few days exploring Python and OpenCV. I'm ...
2
votes
1answer
2k views

Failed to find “GLESv2” when compiling OpenCV?

I'm having trouble compiling opencv 2.4.7 with cmake, I get a Failed to find "GLESv2" error: (hal)pi@raspberrypi ~/OpenCV/opencv-2.4.7/build $ cmake -D CMAKE_BUILD_TYPE=RELEASE -D ...
3
votes
1answer
4k views

Installing OpenCV on Raspberry Pi: can't find packages

I'm trying to install OpenCV 2.4.7 on Raspberry Pi (Model B, OS: Raspbian). The guides I'm referring to are: 1. RASPBERRY PI + SIMPLECV + OPENCV + RASPICAM CSI CAMERA 2. Raspberry Pi + OpenCV 3. ... ...
7
votes
1answer
5k views

Cross Compiling to Raspberry Pi from Windows with External Libraries

Following this guide, http://www.a2p.it/wordpress/tech-stuff/development/remote-debugging-raspberrypi/ , I was able to cross compile from Windows to Raspberry Pi. But is it possible to cross compile ...
1
vote
1answer
2k views

Opencv on a raspberry PI [closed]

What language would be best to use on a raspberry PI with Opencv. Bearing in mind for each language used : Library updates Development Environment including tool kits Performance ...
6
votes
1answer
3k views

What method should I use to track a moving object with a moving camera (using resources of RaspberryPi)

I'm playing around with motion detection through a webcam connected to RaspberryPi using OpenCV and cvBlob in C++. I want to kick it up a notch and make a robot that detects and tracks movement ...
4
votes
1answer
2k views

Raspberry Pi becomes unresponsive when running opencv

I have successfully installed OpenCV on my Raspberry Pi and have been fooling around with some simple webcam streaming, live canny-edge detection, and so forth, all using basic C and C++ code. However,...
3
votes
2answers
2k views

Porting Windows software

I would like to know is it possible to port software that uses OpenCV, OpenGL and QT on Windows to the Raspberry Pi. I wonder is it a must to use Qtonpi dist? I need resources like books, tutorials ...
11
votes
1answer
1k views

Reading video from camera (Kinect if possible)

I am starting up a project that will require Computer Vision to be used on the Raspberry Pi. I am relatively familiar with OpenCV and am aware that it can be installed successfully on a Raspberry Pi ...
3
votes
1answer
1k views

Why would an OpenCV program capturing video frames freeze after a few seconds?

I successfully installed: http://code.google.com/p/cvblob/ on my pi and compiled "red_object_tracking.cpp". Code located here: http://cvblob.googlecode.com/svn/trunk/samples/red_object_tracking....
2
votes
1answer
5k views

How do you build Open CV programs for raspberry pi using a cross compiler?

I have a cross compiler that allows me to compile code on Mac OS x 10.7 and produce binaries for the Raspberry Pi. Compiling simple "helloworld.cpp" programs works like this: /usr/bin/raspi-g++/...
3
votes
1answer
2k views

Installing mjpg-streamer

I tried to install mjpg-streamer(experimental) in pi. But I don't know what to do after the following command. This remains a lot of time. If I tried to kill it shows errors for next command. pi@...
1
vote
1answer
4k views

How we can take video using mjpg streamer in raspberry pi

I am using raspberry pi(Debian Wheezy) with OpenCv 2.3.1. I tried to take video using e-CAM30_USB module but failed. I can take images. FFMPEG is on. But gstreamer tells the stream is unsupported. ...
8
votes
2answers
4k views

Can not capture video using OpenCv

I installed OpenCv 2.3.1 in my raspberry pi (Debian Wheezy) following this tutorial. But I can't take video using my USB webcam. Gstreamer shows this error: OpenCV Error: Unsupported format or ...
3
votes
1answer
11k views

how do you build sample OpenCV programs that come bundled with the OpenCV source?

I have successfully installed OpenCV 2.3.1 on Raspbian image and I would like to build/run some of the C/C++ programs located under the ~/OpenCV-2.3.1/samples directory. For example, if I wanted to ...
5
votes
3answers
3k views

Building Open CV fails on Raspbian on make at 61%

I am trying to install Open CV on Raspbian by following these steps: http://mitchtech.net/raspberry-pi-opencv/ Everything works up until I do a "make". It gets up to 61% and then I get the ...
3
votes
2answers
7k views

Error in installing opencv on raspberry pi

I tried to install opencv on my raspberry pi (OS:Debian wheezy) following the site http://eduardofv.com/read_post/185-Installing-OpenCV-on-the-Raspberry-Pi But when I entered the command it shows ...
29
votes
3answers
9k views

Can I use OpenCV?

While the Raspberry Pi is not exactly a powerhouse, it should be capable of doing some OpenCV image or video processing. Has anyone tried to install it?