Open Source Computer Vision Library, real time computer vision

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Vehicle detection (OpenCV). Arduino or Rasp Pi?

I am new to open cv, and I'm starting to do a project. I want to use open cv for vehicle detection. I prefer using C++ language. Should I go with Raspberry pi or Arduino ? And why(what are the ...
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1answer
15 views

Pip exception while installing matplotlib on raspberry pi

I am working in a opencv project on the raspberry pi, and im using a virtual environment, but i used pip to install numpy, scipy and other libraries, but when trying to install matplotlib on pip by: ...
0
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1answer
12 views

Can I Execute a Jar-File that contains JavaCV 1.0 on a Raspberry PI?

Is this possible to run a Jar-File that contains JavaCV 1.0 on a Raspberry PI?
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0answers
25 views

How do I capture images from a Point Grey Camera?

I want to capture images from a Point Grey Chameleon camera through OpenCV with the python language. I know from the following links that this is definitely possible to do. ...
-2
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1answer
40 views

A suitable OS for running a Java application which captures photos and prints them [closed]

I have developed a Java application, which captures photos from a webcam and detects faces (using OpenCV) and prints only the facial area on paper. Now I have to run this app on a Raspberry Pi. I need ...
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1answer
42 views

Access numpy array in openCV

Using the documentation here here, the code import time import picamera import picamera.array import cv2 with picamera.PiCamera() as camera: camera.start_preview() time.sleep(2) with ...
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1answer
30 views

Accessing YUV data in openCV on the RPi [duplicate]

I came across thisquestion and answer which said how to get a numpy array from raspicam, using the PiYUVAnalysis class. I can output the array itself, But i do not know how to view the array as an ...
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0answers
30 views

openalpr error -bash: alpr: command not found

When I type "alpr --help" and entered. Then it shown -bash: alpr: command not found error massage. How to solve this problem? I followed this method to install all the stuff ...
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0answers
32 views

Best way to play and blend videos with Raspberry Pi 2

I'm looking for a way to programatically play and blend two videos (and possibly an image as well) with the Raspberry Pi 2. According to my tests, it is crucial that the lib/framework can use hardware ...
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0answers
42 views

Can't connect to the Pi after cloning the SD card

I want to make a new SD card with Raspbian and OpenCV installed. Instead of making it from scratch, I have already done this from another SD card that I use with raspberry. After cloning the SD card, ...
1
vote
1answer
69 views

lens for raspberry pi 2 to expand the field of view

Hi all i'm using raspberry pi 2 with raspbian , i'm working on face and eyes detection using opencv and c++ , i want to expand the field of view for the pi official camera module any suggestions will ...
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48 views

How to use floating point support in raspberry pi 2

I'm using raspberry pi 2 with raspbian and I'm working on face and eyes detection using opencv and c++. I want to improve the performance and the execution of my program and I was wondering if I can ...
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0answers
135 views

Raspicam C++ library — captured image requires several grab()s to be properly bright

Note that I am referring to the C++ library, raspicam (http://www.uco.es/investiga/grupos/ava/node/40), not the raspberry pi camera in general. Unfortunately, I don't have the reputation to make a ...
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36 views

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
55 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 ...
0
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1answer
275 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 ...
2
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1answer
165 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
88 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
33 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
179 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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0answers
82 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
96 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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0answers
32 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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0answers
59 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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85 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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84 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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56 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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315 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
1k 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 >>> ...
2
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1answer
341 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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0answers
147 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 ...
2
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1answer
631 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
446 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
320 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 ...
0
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1answer
212 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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0answers
2k 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: ...
0
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1answer
79 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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153 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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2answers
6k 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
221 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
451 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
112 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
302 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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0answers
132 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
4
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1answer
782 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
3k 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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213 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 ...
0
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1answer
449 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! ...
2
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0answers
259 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 ...