Open Source Computer Vision Library, real time computer vision

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Problems in getting two camera feeds via an OpenCV python program

I'm running a Ubuntu 14.04 LTS on my RPi 2. I've OpenCV 2.4.9 installed on it. While running a simple camera capture program works fine. Here is a code for it. import numpy as np import cv2 from ...
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1answer
42 views

Kernel throwing up all kinds of errors over night

I am developing a system that uses OpenCV with Python to access the csi camera, and PyGame for the GUI. Due to the nature of the system (security program) it needs to be left unattended pretty much ...
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1answer
54 views

Installation OpenCV 3.0 on Raspberry Pi running Debian Wheezy

I need some help to find a tutorial or help installing OpenCV-3.0 on my raspberry pi running debian wheezy. The OS was already pre-installed on the micro-sd. I followed some guides online but it seems ...
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1answer
32 views

Error loading bc2835-v4l2 driver, Raspberry Pi and OpenCV

disclaimer: I am new to OpenCV and Raspberry Pi, although I have a fair amount of experience with linux systems in general Here is what I am attempting to accomplish: I am trying to use a Raspberry ...
2
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1answer
33 views

OpenCV cv2.VideoCapture(0) is not working well with webcam

I am trying to use a USB webcam for a computer vision project that outputs the diminations of moving object. I installed openCV and tried my python code which it worked perfect on my PC, but when I ...
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1answer
28 views

I try to compile raspicamCV

I try to compile the raspicamCV library from this link. It compiles the raspicam library, but after that it should compile raspicamCV and get this error. Can someone help me in this matter?
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2answers
131 views

How to diagnose problem with OpenCV face tracking

I am attemping to create the pan-tilt face tracker, using Raspberry Pi 2 Raspian Regular Raspberry Pi Camera from an article on the Pimoroni site, and when I run the python code I get about 20 ...
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40 views

Multiple webcams - cannot open in openCV & corrupted image

I've connected four USB webcams via well powered USB hub to RasPi2. I want to use them in openCV. So I setup a simple program, where I opened the cameras using cvCaptureFromCAM, captured a cv::Mat and ...
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3answers
84 views

Run code on raspberry pi without gui

I am developing an application based project and I am almost done with it. Now I need to covert that to a commercial level product. As it is application specific I want my code to run as soon as I ...
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28 views

Raspberry already compiled opencv no working

I tried to compile opencv but at 55% I get some sort of error about not enough physical memory, so I tried a compiled library for raspberry from this link. After I moved *.so files into ...
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37 views

cv2.contourArea on SimpleCV blob not working like on desktop

I have identical code running on both the raspberry pi, and my Ubuntu14.04 desktop. import cv,cv2,SimpleCV import numpy as np from SimpleCV import Image img=Image("in.jpg") blobs=img.findBlobs() ...
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65 views

Importing Lepton Thermal Module video feed into OpenCV on Raspberry pi

I'd like to import the video feed that I can capture from a thermal imagery camera I got off sparkfun for a college project of mine. But, I can't seem to get the ./raspberrypi_video into the Video ...
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72 views

Webcam doesn't work on Raspberry Pi VIDIOC-QUERYMENU: Invalid Argument

So I wrote an image processing program in Python on my windows computer and it works fine there, but when I try to run it on the Raspberry Pi I get VIDIOC-QUERYMENU: Invalid Argument a bunch of times. ...
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0answers
52 views

Raspberry Pi Cam with opencv

I have captured a stream using pi camera, but I can't find a way to make it as an argument to cv.QueryFrame(). Any help appreciated.
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245 views

RPi2 Or ODROID-C1 for better OpenCV performance?

I am planning for a project requiring face recognition using OpenCV and got confused between two boards at same price - the Raspberry Pi 2 and ODROID-C1. My question is which board is more suitable ...
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1answer
632 views

Python - cannot import OpenCV module?

I used this guide which installs OpenCV in a virtual environment, however I am getting the following error when I try to import the cv2 module: $ source ~/.profile $ workon cv $ python >>> ...
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260 views

Taking advantage of multiprocessing with OpenCV on raspberry Pi 2

I used to use OpenCV on Raspberry for different projects (face recognition, sync cam, stitcher etc...). I bought a raspberry Pi 2 for the advantages given by the new hardware config. However, I could ...
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126 views

How do I increase the speed of my Python OpenCV program?

Specs: RPi 2, not overclocked, did rpi-upgrade, using ssh to run vnc on laptop. I've got a face tracking algorithm that is working fine on the Pi (and my PC). Problem is it has a lag of about 2 ...
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1answer
319 views

RPi camera module with opencv [duplicate]

I am trying to use the raspberry pi camera module as the live video feed in my opencv code(c++). However, the pi camera module does not work the same as the USB camera. eg: for USB webcam: ...
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1answer
325 views

Reading Frames of uncompressed yuv video file?

I recorded an uncompressed / un-encoded video in yuv format using camera of my raspberry pi. I want to read each frame as an image and also count the total number of frames of the video. I found ...
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1answer
248 views

Tiny picture using opencv2 and v4l2 driver

I'm using opencv2 and V4L2 driver on my pi and have managed to get a tiny picture out of the Raspberry Pi Camera Module with the following script: #!/usr/bin/env python import cv2 camera_port = 0 ...
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1answer
191 views

Making opencv2 work with NOIR camera board problems

I'm struggling to get opencv2 to work with my NOIR camera board. I'm following this guide to make the pi camera work with the opencv2, but don't fully understand what it's doing, and can not get it ...
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1k views

H264 IP camera stream by Raspberry Pi 2 with OpenCV and GStreamer: Gstreamer unable to start pipeline

I'm trying to get working OpenCV with GStreamer to get IP camera rtsp stream. But it is giving error which is (with opencv-master branch, Gstreamer 1.2.4, Raspbian 3.18.7-v7+: GStreamer Plugin: ...
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1answer
74 views

Problems getting NOIR camera board working with OpenCV2

I'm trying to get opencv2 working on a Raspberry PI with a NOIR camera module. As I understand it Opencv doesn't work natively with the camera module; so I'm following this link to try and get it ...
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127 views

Raspberry Pi for real-time ARtoolkit & Opencv based recognition?

I im supposed to develop a real-time interactive display unit with marker recognition & other CV stuff. I m considering Raspberry Pi for this purpose & I have few questions, it would be great ...
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4k views

installing OpenCV 3.0 on raspberry pi b+

Is it possible to install OpenCV 3.0, opencv python on Raspberry pi b+? How to install and are there any precompiled binaries available ?
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1answer
182 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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1answer
400 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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96 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
236 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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120 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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1answer
647 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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3answers
2k 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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193 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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2answers
2k 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
349 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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0answers
241 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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3answers
1k 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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147 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 ...
2
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1answer
3k 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 ...
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1answer
833 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
219 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
202 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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0answers
261 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
644 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
218 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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118 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
105 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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2answers
12k 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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2answers
209 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 ...