OpenCV (Open Source Computer Vision Library)

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Symbol lookup error while running an executable with shared libraries

I am trying to running an executable (on 64 bit Ubuntu 16.04) which uses OpenCV (I do not have the source code of the executable). The executable runs fine on 64 bit Ubuntu 14.04. However, when I ...
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Installing OpenCV (from the offical install script) - cmake error

I'm trying to install opencv on a virgin ubuntu 16.04 LTS virtual-machine (osboxes.org). From what I've read, using an install script is the current/preferred way of installing opencv on ubuntu: ...
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Installing OpenCV 2.4.9 in Ubuntu 16.10 [on hold]

I have a problem for install opencv in Ubuntu 16.10, Somebody can help me? How can I install Opencv 2.4.9 in Ubuntu 16.10? I tried to use these commands: version=2.4.9.1 echo "Installing OpenCV" $...
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How can I do this? PSEye Capture Video

Example I need capture video from four cameras (PSEye) and save AVI files. I do not intend to use the data in real time. And I do not have much programming knowledge. It is possible to achieve this ...
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OpenCv Upgrade 2.4.8 to 2.4.9 [duplicate]

How to upgrade Open CV 2.4.8 to 2.4.9 using terminalenter code here
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28 views

Cuda7.5 problem while building open-cv2

I'm trying to install open-cv2 on ubuntu 16.04, but make command gets a conflict with cuda 7.5 which is not compatible with gcc versions later than 4.9. But, even if I update alternatives, it's the ...
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Uninstall OpenCV - Ubuntu keeps asking for permission

I am installing caffe and I think I screwed up my install by having multiple versions of OpenCV. Now I don't know what I did on my own but I might have done something wrong and nothing is working. So ...
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Install opencv cannot find lib libswscale

I am installing opencv on Ubuntu with cmake. Because I have no root privilege, the library required is installed in my home directory. I set the PKG_CONFIG_PATH and LIBRARY_PATH to the directory I ...
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How to install OpenCV 3.1 for Python 3.5 On Ubuntu 16.04 LTS?

How to install OpenCV version 3.1 on Ubuntu 16.04 LTS to work with Python 3.5.1? I tried this on a VM but obviously that is useful to do if you want to work with Python 2.
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Theano installation corrupted after installing opencv

I've installed theano on ubuntu 16.04. I can specify the installation procedure later if required Some of the system specs are as follows Ubuntu 16.04 CUDA 7.5 NVIDIA Drivers 361 Python 2.7 The ...
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Problem with CMAKE

How to solve this problem?! Detected version of GNU GCC: 52 (502) Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found suitable version "1.2.8", minimum required is "1.2.3") Found ZLIB: /usr/lib/...
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Problems building OpenCV with CMake

I'm trying to build OpenCV from source using CMake. Following the official OpenCV instructions, I've changing directories to my binary directory, then I'm entering the following: michael@GNU:~/...
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194 views

install opencv 3.1.0

I downloaded opencv3.1.0 and extracted it then I opened cmake and built it.Then I opened terminal and in its directory (the directory of given to cmake as build address) typed "make".when making is ...
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354 views

Installing libgtk-x11-2.0.so.0 in Ubuntu 15.04

I'm trying to install opencv on my Ubuntu 15.04 server. I'm using the conda package manager. conda install -c https://conda.binstar.org/menpo opencv3 When I try importing cv2, the Python package, I ...
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problem installing openCV: libpng16.so.16 warning and make error

I've tried installing openCV 3.1.0 according to this guide on Ubuntu 14.04.1. But it yields to the following warning in the makestep: /usr/bin/ld: warning: libpng16.so.16, needed by /home/smeik/...
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Error in Opencv instalation (error in file: opencv/modules/videoio/src/cap_libv4l.cpp)

I tried to install OpenCV several times but always returns the same error. I'm running Linux - Debian in Beaglebone Black. The configuration is: root@beaglebone:~# uname -a Linux beaglebone 3.8.13-...
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Ubuntu 14.04 - OpenCV “make uninstall”

I have installed OpenCV following the directions given here Now I want to know how I can make a clean uninstall of it since I need to install an older version. I have tried to follow the ...
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98 views

How do i make QtCreator to stop using both gtk+2.x and gtk3

I am trying to build an opencv project in QtCreator on an ARM board ( ODROID-XU4). Its a gui application but when i try to execute the code it throws an error "GTK+ 2.x symbols detected. Using ...
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Cmake error: “Found unsuitable version”

I have two versions of CUDA installed: 7.0 and 7.5. These are located at /usr/local/cuda-7.0 and /usr/local/cuda-7.5 respectively. I also have a symbolic link at /usr/local/cuda which points to /usr/...
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libopencv-core2.4 in trusty of architecture amd64

Is there any way to know how /usr/lib/x86_64-linux-gnu/libopencv_core.so.2.4.8 was compiled? I compiled my own version of opencv2.4.8 (both Release and Release with Debug). When I build and link an ...
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Ubuntu 14.04 Issue with Java and OpenCV install

OK, I'm relatively new to Ubuntu. First off, does OpenCV 2.4.9 have any compatibility issues with 14.04 LTS? Every time I execute a make in the build folder, it leaves out the java under list of ...
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Opencv installations problems in Ubuntu 15.10

I have just updated my Ubuntu 14.04 to 15.10 n i had already installed Opencv-2.4.11. But after update its facing some problems to execute. Already tried to reinstall opencv. The errors are something ...
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Python Gtk-ERROR **: GTK+ 2.x symbols detected

I was trying to run my first OpenCV program in python on Ubuntu 14.04. import cv2 import numpy as np import matplotlib.pyplot as plt img =cv2.imread('share.jpg',0) cv2....
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how to change opencv configrations in cmake to support qt

I'm new to opencv. I installed it on my computer using cmake following the tutorial in their website. mkdir Desctop/opencv cd Desctop/opencv git clone https://github.com/Itseez/opencv.git cd opencv ...
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Installing and importing OPENCV ubuntu

Im trying different methods but still could not make opencv work on my Ubuntu. Every time I try to import cv2 I receive: ImportError Traceback (most recent call last) <ipython-input-1-...
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installing opencv 3.1: make install “erased” libopencv_core.so.3.1.0

I have been struggling to have qt creator (with QT5) to work with opencv, I have eventually traced a problem back to opencv installation after make install (This question isn't about qt). My cmake ...
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OpenCV loading image error

https://help.ubuntu.com/community/OpenCV I am trying to load an image from C++ and when I typed in this command $ g++ -ggdb `pkg-config --cflags opencv` -o `basename opencvtest.cpp .cpp` opencvtest....
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435 views

Cmake error when I try install Opencv 3.1

I want to compile and install OpenCV 3.1 on my Ubuntu 15.10. I followed this tutorial. After I ran the cmake command, the installation begin, but the process return error, and ALL FILES IN MY UBUNTU ...
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308 views

How to undo apt-get autoremove

I just walked into the trap of calling sudo apt-get install autoremove I did it because I was unable to install sudo apt-get install libopencv-dev because of unmet dependencies. Now my ros-indigo ...
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cmake configuration incomplete, errors occurred

I'm trying to install opencv-3.1.0 on Ubuntu 15.10. These are the commands I executed before writing the cmake command: sudo apt-get install build-essential sudo apt-get install cmake git libgtk2.0-...
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Is there an equivalent of virtual env but for the whole of ubuntu?

Python has a wonderful tool called a virtual environment, which lets you effectively hermetically seal various python libraries (which may conflict with each other!) from each other. Is there an ...
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CMake OpenCV installation issue

This is driving me nuts for the past three hours. I simply want to install CMake and then install OpenCV 3.1, but I am getting an Unsupported protocol error (please see below). I installed CMake 3.4....
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197 views

Problems installing Opencv 2.0 on Ubuntu 14.0

I'm having problems trying to install OpenCV 2.0 on Ubuntu 14.04. When I want to install the dependencies I got the following problem: andres@andres-VirtualBox:~$ sudo apt-get install build-essential ...
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i cannot install eclipse plugin for openframeworks?

I tried installing it from "help -> install new software", but I'm getting an error. I have eclipse-cdt and it shows this error: An error occurred while collecting items to be installed session ...
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OpenCV using Code::Blocks, shared library errors

I've installed openCV and followed these steps to configure my Code::Blocks. I am getting these errors: By the way: I've tried ldconfig and creating a opencv.conf file through this.
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Missing write permissions in home/user/anaconda2

I am trying to install opencv using the command conda install opencv This command worked on my laptop, but i am getting following error when I try it on my desktop computer. Both systems are ...
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Install OpenCV 3.0.0 on eclipse - Ubuntu 14.04 32bit

I am trying to install OpenCV 3.0.0 on eclipse. I followed this guide to build OpenCV and now I am trying to install it on eclipse using this guide. The problem is, there is no Java folder inside the ...
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How do I resolve dependency issues when installing Emgu CV on Ubuntu 15.10?

I need to install Emgu CV, a .NET wrapper for OpenCV, for my robotics programming class at the instructor's request. The documentation for this software indicates that it is cross-platform and can be ...
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opencv compiling error ippicv

When I write this to terminal: g++ LATCH_match.cpp -std=c++11 $(pkg-config opencv --cflags --libs) I've got an error like this: /usr/bin/ld: cannot find -lippicv collect2: error: ld returned 1 ...
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Where can I find compiled binaries of OpenCV for Ubuntu?

I tried compiling OpenCV libraries several times and every time an error occurs or the jar file for java is not generated. So is there a precompiled version available?
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BeagleBoard xM with ubuntu 12.04 and opencv slow with face detection

I have an issue and I would appreciate it if someone could help. I am running ubuntu 12.04 on a beagleboard xm. I have also installed opencv. Now I need to run an application which performs face, eyes ...
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Face point annotation tools

Are there any face point annotations tools to generate face alignment coordinates? Something like this http://ibug.doc.ic.ac.uk/resources/facial-point-annotations/
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Opencv using different header files version and different libraries version

I am new to Ubuntu and OpenCV. Apologies for my amateurishness. I think I messed up OpenCV installation. I had installed OpenCV 2.4 months back. The installation was successful (built openCV from ...
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how to use zebronics zeb-1000 or other tv tuner in ubuntu?

I have a zebronics zeb-1000 tv tuner of which drivers are limited to windows platform only. Is there any way to use this tv tuner in ubuntu-14.04? On lsusb : i am getting : Bus 002 Device 005: ID ...
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program in not running completely

I have written a program to count no of cars from the captured video. I have installed opencv and cvblob, raspbian wheezy OS on raspberry pi 2. The problem I am facing is "During run time the program ...
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159 views

libopencv installation does not work

I am working with Ubuntu 14.04. I wanted to upgrade to the latest version of OpenCV and following some other posts, executed following command to remove the previous version sudo find / -name "*...
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OpenCV with CUDA on Ubuntu 14.04 installation error

When I try to install opencv with CUDA 7.0 on Ubuntu 14.04 it returns the same error message. I'm running cmake with the following command cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/...
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Is java binding included in opencv ubuntu package?

searching for opencv package with apt-cache search opencv i found libcv2.4 and the pyton binding python-opencv Do you know about a java binding package?
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OpenCV compilation error

I am installing OpenCV 2.4.11 on my Ubuntu platform. It has been build. But on compiling it shows an error: Linking CXX shared library ../../lib/libopencv_core.so /usr/bin/ld: skipping ...
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Error on running Grayscale using Opencl c++

I am new to OpenCL so I have been working on some simple OpenCL C++ programming. I have written a code on Gray scaling using OpenCL and OpenCV. It has been compiled properly, but on run it gives me ...