Open Source Computer Vision Library, real time computer vision

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gesture recognition/finger-tip detection using opencv

I'm super new to image processing. Real time image processing. And I need help how to start with my project. I'll be making a finger-tip detection project or gesture recognition for both hands and ...
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1answer
7 views

Error while loading shared libraries: cv2.so

I installed OpenCV on my Raspberry, I wrote the first sample program (http://docs.opencv.org/doc/tutorials/introduction/display_image/display_image.html). It compile correctly, but if executed from ...
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0answers
125 views

How to compile OpenCV software on Raspberry?

I want compile an OpenCV program on Raspberry, the problem is that I didn't figure out how to do so. I installed OpenCV following this guide. $ pkg-config --modversion opencv 2.4.1 OpenCV can be ...
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0answers
23 views

Use laptop iSight with Python and openCV [closed]

Can I connect my pi to my MacBook and then use the camera on it as a webcam for openCV? I need to trick the pi into thinking the MacBook is a USB webcam, so that the pi can pull a video feed from its ...
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1answer
30 views

Failed to run camera app. Please check for firmware updates

Trying to get the pi cam working with open cv per http://thinkrpi.wordpress.com/2013/05/22/opencvpi-cam-step-5-basic-use-display-a-picture/. Finally have the program built, but now I get this: ...
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43 views

Raspberry Pi + Qt4 + Opencv cross compile from windows

Hi I want to know how to use opencv in raspberry pi. I have cross compiled qt raspberry from windows and succeed but I cannot add library opencv. Thanks for any help
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0answers
137 views

Resolution properties for python's OpenCV and uv4l camera driver

I've followed this tutorial to install OpenCV 2.3.1 in raspberry and it has worked fine. I've also installed from here the uv4l raspicam driver. But now I need to modify some capture properties as the ...
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2answers
535 views

Picamera taking pictures fast and processing them

I'm working on a school project where I have to make a robot move parallel to a wall and stop when it sees a big red square. For this I have the picamera module and the openCV library. I have working ...
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85 views

OpenCV. Can't open video from usb camera on the screen

When I'm trying to start simple code, the frame opens and don't respond. import numpy as np import cv2 cap = cv2.VideoCapture(0) while(True): ret, frame = cap.read() ...
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1answer
246 views

Installing opencv (C++) on Raspberry pi and other misc packages

I've been doing a fair amount of research in regards to installing opencv on to a raspberrian distro, but the problem is that there is far too many different methods to installing it and truth be ...
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1answer
147 views

site-packages dir empty but OpenCV works…what the?

I used the following to install opencv sudo apt-get install libopencv-dev python-opencv I can "import cv2" fine, read images, manipulate them to my hearts content...everything works great! ...
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109 views

how to install cross-compiled opencv's libraries on raspbery pi

My problem is may be complicated, I'll try to detail I cross compiled opencv for ARM (Raspberry Pi) from my host, and everything works fine. I also tried to cross compile an example and it also ...
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240 views

how to install libtbb-dev in raspberry-pi

I am trying to install libtbb-dev on my raspberry-pi as part of installing opencv. sudo apt-get install libtbb-dev But i am getting an error as Package libtbb-dev is not available,but is refered ...
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0answers
99 views

opencv and cv2.so/libcv2.so setup for python

I installed opencv 2.4.8 on my raspberry-pi. But i am not able to locate cv2.so /libcv2.so so that whenever i import i get error as cv2 not found. Is there a way to download theese packages to use in ...
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0answers
2k views

Pi Camera Module frames directly to OpenCV lib for processing

My intension is to use raspberry Pi for tracking coloured object. I am using Python, OpenCV and Raspberry pi Camera Module. Since OpenCV doesn’t work out of the Box with raspberryPi cam Module, I ...
0
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1answer
347 views

Exposure correction via Picamera module

I am using the python picamera module developed by Dave Hughes. As per the documentation, the camera exposure can be set between -25 to 25. In my application, I need to get brightest pixels from the ...
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0answers
149 views

Setting up opencv eclipse native library in raspberry-pi (Linux based)

I am trying to setup a java based opencv program to run on raspberry-pi.I installed opencv-2.4.8 on my raspberry-pi. I also installed eclipse to set up opencv.The problem is i am not able to link ...
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1answer
107 views

Logging faces with OpenCV

I'm pretty new to OpenCV. Basically I want my RPi to do facial recognition with OpenCV and then log (save only the face as a picture) and store it in a database. How would I achieve this? I also want ...
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162 views

Is RaspberryPi OpenCV fast enough to run eye blink recognition?

I would like to create application that can recognise eye blink recognition on RaspberryPi with Raspberry Pi Noir camera. Eye blinks are fast, so I will have to process many frames per second. Is ...
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1answer
285 views

I don't get 24 frames per second

Although the camera framerate has been set to 24, 24 frames are being captured at 3 seconds. Wondering where I am going wrong?? I need to convert the stream to an OpenCV object to do further image ...
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1answer
154 views

Difference between pi camera & usb HD cam

I am working on image processing project where working on frames taken by camera using raspberry pi. So i want to know which is better ? to use pi camera or usb cam , Hint : required good camera as ...
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89 views

Opencv configuration issue

I have recently installed opencv 2.4.8 on my raspberry pi.When i check the version with pkg-config --modversion opencv 2.4.8 But in my python code when i import cv2 i am getting the error as no ...
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1answer
67 views

model a with opencv

I got a camera, a model A and a 8gig sd card and no idea what i'm doing I tried writing the noobs full image to the disk but when i plug it into the montior and power it on I get nothing Is there an ...
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0answers
286 views

Streaming webcam with Raspberry

Hi I'm trying to execute this code: http://www.xploreautomation.com/opencv-acquisizione-stream-video/ but I can't manage to do it. It says: HIGHGUI ERROR: V4L/V4L2: VIDIOC_CROPCAP init done opengl ...
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2answers
6k views

Using OpenCV with RasPiCam and python

Has any one been able to get OpenCV to directly play video from the RasPiCam board using python? I've seen some projects involving workarounds, but what I'm interested in is being able to use the ...
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177 views

Can I use openCV with Java SE embedded wrapper for Raspberry Pi?

I will try to explain what I am trying to do, as it seems to be relevant in order to understand my question. I am currently trying to do face recognition from a webcam connected to a Raspberry Pi ...
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310 views

Installing openCV on raspberry pi for video detection error avformat.h not found

I want to install opencv on the raspberry pi for image detection on a video I have followed this tutorial but the videos are not to be played or proccessd. I tried to install it again to make sure ...
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2answers
647 views

Image Recognition Raspberry Pi

I'd like to distinguish different types of beers in my fridge using a Raspberry Pi. I saw a very good tutorial on Adafruit that utilized OpenCV for face recognition. Can these same face recognition ...
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0answers
134 views

Interfacing Raspbian OS and webcam

I need to connect a webcam to Raspberry Pi for capturing images. I am using Raspberry Pi model B, and Raspbian Wheezy OS. Please help me out with the code. After capturing images I have to apply ...
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0answers
276 views

Options for slow camera via OpenCV

I'm desperately trying to use the Pi camera to do some work with it; I'm using OpenCV but trying to process the feed from the camera itself. Currently I'm running OpenCV on the Pi itself but this is ...
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189 views

Raspberry Pi CSI camera (RaspiCam) stops working after several actions

I am working on a project using the Raspberry Pi model B and the Raspberry Pi CSI camera module (RaspiCam). I'm using the libraries OpenCV and dynamixel. Image tracking and the dynamixel action ...
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1answer
332 views

building Raspberry PI apps from Windows

I want to build a C++ program for face detection using visual studio and opencv. I already installed the visual studio 2013 express edition and the opencv 2.4.8 on my windows 8 computer and linked the ...
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2answers
577 views

How to install opencv and eclipse on a raspberry pi

Is this possible? I've tried through command line but haven't found a clear tutorial yet. Would it be easier to accomplish this from gui or should I stick with the terminal?
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2answers
522 views

my raspberry pi freezes while face tracking using openCV and servoblaster

I'm trying to track face with Pan and tilt motion, using servoblaster and opencv, i followed this tutorial if anyone is intrested.. it runs perfectly but after few seconds camera freezes and it stops ...
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2answers
627 views

How can you use face recognition on raspberry pi as a login to the pi?

I have created an owncloud server using RPI, Now I was wondering how to implement the face recognition as a login for the pi. I know I have to use the OpenCV.
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71 views

Image Processing

I implemented face recognition algorithm in raspberry pi(python 2.7 is was used), i have many sets of faces, if the captured face is one in database then the face is detected(i am using eigen faces ...
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1answer
368 views

tornado server with video streaming

I'm running tornado web server on my Raspberry Pi and its task is very simple. It just takes commands and sends them to an Arduino over serial. I'm thinking of adding the Pi camera module and then ...
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0answers
259 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 ...
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214 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 ...
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441 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, ...
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425 views

OpenCV messing up camera capture?

I recently updated my OpenCV to version 2.4.6.1, and I installed it with following commands and settings on my Raspberry Pi: wget ...
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1answer
2k 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 ...
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0answers
264 views

Build a connection between webcam and cron using python -opencv

I am using python-opencv to build a program to capture images through webcam and to save them.I want that program to start at boot using cron.My python code and cron line is as follows: ...
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1answer
543 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
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1answer
3k 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. ... ...
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1answer
2k 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 ...
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1answer
1k 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 ...
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0answers
862 views

Why can't opencv open my VideoCapture device?

I am running the "wheezy" distro on my board. I have OpenCV 2.3.1 installed. I made a small test program in C++ that attempts to open my webcam device that is on '/dev/video0'. I use, VideoCapture ...
6
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1answer
2k 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
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1answer
782 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. ...