OpenCV (Open Source Computer Vision Library)

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-1
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1answer
29 views

Compiling error: expected ‘)’ before ‘&’ token [on hold]

I'm trying to compile some code and I get an "error: expected ‘)’ before ‘&’ token" in this part of the code: int number_of_features; number_of_features = 400; CVAPI(void) ...
0
votes
0answers
19 views

Best Linux os for Electronic Engineering Students [closed]

Please can some one tell me what is the most preferable Linux OS for Image processing(using Open Cv) and electronic based works ? What is industry use? after we graduate which Linux OS we have to use ...
0
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0answers
19 views

C920 + OpenCV and VLC resolution problem

I am trying to use one webcam Logitech C920 with OpenCV to record videos and the resolution recorded is 640x320. I already tried to change the resolution with .set(CV_CAP_PROP_FRAME_WIDTH,1280) but it ...
0
votes
1answer
32 views

g++:error: `pkg-config --cflags --libs opencv`: No such file or directory

I run a program like this: g++ begueradj.cpp -o begueradj`pkg-config --cflags --libs opencv` I want to run the above command line from a Python file test.py: import subprocess ...
0
votes
1answer
34 views

createCLAHE missing with Python [closed]

I have installed openCV but even though apt-get is telling me that I have the latest version I get this error: File "./convert_to_HSV_histogram_equalize_V5.py", line 132, in <module> ...
0
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0answers
33 views

How do I update OpenCV in Ubuntu 14.04?

I need to update my OpenCV version. What’s the easiest way to do this?
1
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2answers
20 views

libopencv_features2d.so.2.4 present in /usr/local/lib but executable needs libopencv_features2d.so.2.3

I am a newbie so if this question has been previously asked or it is too rudimentary, please go easy on me and be helpful. I have installed opencv-2.4.0 and now I am working on terrain classification ...
0
votes
0answers
18 views

Sorry, the application ld.bfd has stopped unexpectedly

I am making opencv-2.4.11, and when I make, eventually in the make process, I get a pop up saying "Sorry, the application ld.bfd has stopped unexpectedly", and I get a make error(make: ***[all] Error ...
1
vote
1answer
42 views

Unable to install opencv on 12.04

I want to OpenCV it for image processing in a line tracer robot using camera. I want to install openCV on my 64-bit laptop with ubuntu 12.04 2GB Nvidia card. I tried the command: sudo apt-get ...
0
votes
1answer
31 views

Python - problem importing OpenCV?

If I run the following I see that OpenCV is installed: $ pkg-config --modversion opencv $ 2.4.10 I have it installed in a virtual environment but when I try to import the cv2 module I get an error: ...
0
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0answers
26 views

crash while compiling opencv

I'm currently trying to install opencv-3.0.0 on ubuntu 14.04 as per these instructions: http://docs.opencv.org/doc/tutorials/introduction/linux_install/linux_install.html Everything works fine until ...
0
votes
0answers
29 views

Error Installing OpenCV

Using the instructions found at the official sites documentation, I'm getting an error while trying to install required packages with the command: sudo apt-get install cmake git libgtk2.0-dev ...
1
vote
0answers
61 views

Simple OpenCV program crashes

I am currently having a problem. I am following the instructions given in this book "OpenCV 2 Computer Vison Application Programming Cookbook" for creating a simple image display program in OpenCV ...
1
vote
0answers
67 views

Adding OpenCV CUDA support after installation

I am having a problem. I installed openCV 2.4.10 following this tutorial. http://www.sysads.co.uk/2014/05/install-opencv-2-4-9-ubuntu-14-04-13-10/ At the moment of installation I did not enabled the ...
0
votes
1answer
255 views

Cannot install last version of OpenCV on Ubuntu 14.10

I try to install opencv using the instructions from here but I get every time the error Linking CXX shared library ../../lib/libopencv_videoio.so /usr/bin/ld: /usr/local/lib/libavcodec.a(avpacket.o): ...
1
vote
1answer
201 views

Failure to Install opencv 2.4.9 on ubuntu 14.04

I am trying to install opencv 2.4.9 on ubuntu 14.04. I am getting an error while compiling files. When I run: cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D ...
0
votes
0answers
49 views

Multiple Libraries in OpenCV. Build error in Eclipse

I messed up with my OpenCV recently and thus had to reinstall it alongwith Eclipse. Now when I try to link Eclipse with OpenCV, it gives me the following error at build /usr/bin/ld: cannot find ...
0
votes
0answers
32 views

Uninstalling OpenCV in 14.04

I have read various topics regarding the uninstallation of OpenCV, but haven't been able to do so. Partly because I am noob and mainly because those haven't been very much detailed as to how to use ...
-1
votes
1answer
36 views

Editing OpenCV source code

How would one go about editing either the C++ opencv functions and/or the python opencv functions in Ubuntu? Where is the source code located? For C++ how would one go about recompiling the source ...
0
votes
0answers
75 views

Open Cv installation problem

I am following this link for installing OpenCv but on the make step I came across an error: home/aman/opencv/opencv/modules/videoio/src/ffmpeg_codecs.hpp:98:7: error: ‘CODEC_ID_H264’ was not ...
1
vote
1answer
44 views

Output of make command FBReader open source - /usr/bin/ld: cannot find -llinebreak

I am new to Ubuntu. I want to make a FBReader open source project. please help me out where I am lacking? Creating libzltext.so.0.14.0 .../usr/bin/ld: **cannot find -llinebreak collect2: ld returned ...
0
votes
0answers
101 views

Switching from GCC to Clang to compile with OpenCV

I have been compiling code that uses OpenCV by using a CMake project with the following flags in GCC: -Wall -Werror -std=c++14 And it compiled every time. No problems anywhere. When I switch to ...
0
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0answers
38 views

Save floating point values in a file in OpenCV

I want to write floating point values in a text/excel file using OpenCV. I need help in this regard.
2
votes
2answers
2k views

How to uninstall OpenCV 2.4.9 completely from Ubuntu 14.04?

I want to integrate OpenCV with qt creator and for that OpenCV 3.0 is required. I have OpenCV 2.4.9 already installed and want to uninstall it completely as it is causing problems in some functions. ...
2
votes
1answer
220 views

Opencv commands are needed to be called as root using 'sudo', otherwise shows error

When I enter into my Opencv project directory and do the following command- sudo cmake . sudo make it generates make files without any error and the program runs successfully. But when I do cmake ...
1
vote
1answer
61 views

install opencv-2.4 in beagleboard zm rev c (12.04)

I'm running ubuntu-12.04-preinstalled-desktop-armhf+omap.img in my BBxm. I want to install opencv-2.4 for a software dependency, but apt-get install only gives me opencv-2.3. I want to avoid manual ...
0
votes
2answers
103 views

Unable to install Box2D package

If I try to run sudo apt-get install python-box2d I get this nonsensical error message: Reading package lists... Done Building dependency tree Reading state information... Done You might want ...
-1
votes
1answer
163 views

uEye camera OpenCV on Ubuntu my code and cv::namedWindow and memcpy are not working together

I installed uEye sdk 4.40 on my Ubuntu 12.04 and I have also installed OpenCV 2.4.9. They are working as well as individually. I wrote some code on Eclipse, to get image from the camera and wanted to ...
0
votes
1answer
4k views

Installing OpenCV in Ubuntu 14.04 [duplicate]

I'm a novice and absolutely new to Ubuntu, although what I'm asking is pretty elaborate I'm sure there must be pretty more users like me wanting to install the latest stable version of OpenCV on my ...
0
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0answers
69 views

Flea2 Camera Firewire not detected in opencv ubuntu

I have researched so much to resolve this, but I haven't got a solid solution yet. I am using a Flea2 camera connected to laptop through the firewire port. The Coriander is abe to detect the camera, ...
0
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0answers
162 views

/usr/bin/ld: skipping incompatible .//libasmlibrary.so when searching for -lasmlibrary

I am using ubuntu 12.04. I am trying to build asmlibrary from this link https://github.com/greatyao/asmlibrary on my system . opencv2.4.9 is installed on my system. I am trying to run make command and ...
0
votes
1answer
718 views

cannot ccompile the basic opencv cpp program

I made the ~/.compile_opencv.sh as given https://help.ubuntu.com/community/OpenCV on this website and then I made this file opencvtest.cpp with the following contents . The image path is a valid path ...
1
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0answers
1k views

error adding symbols: DSO missing from command line

I am newbie to Ubuntu.i want to compile a project that uses opencv but it gives following error: cmake . && make /usr/bin/ld: ...
3
votes
3answers
18k views

Result of make command is /usr/bin/ld: cannot find -lcudart

I am newbie to Ubuntu and using Ubuntu 14.04 64-bit. I want to make a project that uses cuda and opencv I got the following error when running cmake . && make Linking CXX executable ...
0
votes
1answer
346 views

Using OpenCV with OpenGL

I want to use OpenCV with OpenGL. It says the library has no GPU support because it was compiled without any. Is there an OpenCV library compiled with OpenGL somewhere in the repositories? Or do I ...
0
votes
1answer
1k views

Cannot open 2 USB cameras simultaneously on VLC player Ubuntu 12.04

Cannot open 2 USB cameras simultaneously on VLC player Ubuntu 12.04 How I open a Camera: In terminal (text after the $ prompt = commands that I type): $ ls /dev/video* /dev/video0 /dev/video1 $ vlc ...
1
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0answers
31 views

Using camera in opencv

I want to make a robot and I should do live image processing.so I need to take video from somewhere from a camera (canon powershot A3100) and process it.note that taking video is live means that when ...
2
votes
1answer
393 views

“make” error when installing OpenCV

[ 38%] Building CXX object modules/core/CMakeFiles/opencv_core.dir/src/convert.o In file included from /home/bomi/OpenCV/modules/core/src/precomp.hpp:55:0, from ...
0
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0answers
403 views

Ubuntu 14.04 openCL and ATI/Intel graphic

I'm wondering if following is possible : I have two graphics cards - ATI and Intel, and installed fglrx driver. In amdcccle I have enabled Intel card. I'm developing OpenCV application where I have ...
1
vote
1answer
2k views

Error while compiling OpenCV in Ubuntu 14.04

I followed the instructions for compiling opencv2.4.9 from Install OpenCV 2.4.9 in Ubuntu 14.04, 13.10 I am getting the following error during the build process. Can someone point out to me how to ...
1
vote
1answer
102 views

installed libopencv results in blackscreen after login

I am new to Ubuntu and set it up a few days ago. Now I wanted to install OpenCV since I need this for university matters. After turning off my pc I was able to log in but afterwards just a black ...
1
vote
1answer
1k views

OpenCV error in setting resolution with c910

I've been trying to use OpenCV to control my webcam (Logitech c910) through python. I 've managed to capture images through .read() but they are 640 x 480 and I haven't managed to set the resolution ...
6
votes
2answers
13k views

How to install opencv 2.9 for python?

I have been having the exact same problem as described in this post and someone in the answers suggested that you upgrade to opencv version 2.9. I was wondering how do that? I installed the version ...
0
votes
1answer
1k views

Install opencv eclipse

I am using ubuntu 13.10 and I am trying to install opencv on eclipse. I am following this tutorial LINK I do not know where is my library. This what I obtain when I try to find the files. ...
0
votes
1answer
743 views

OpenCV Build Error: “Cannot open options file specified with @”

I am having trouble installing OpenCV on my machine. I run Ubuntu 12.04. I have followed this guide: http://www.raben.com/book/export/html/3 in order to install OpenCV 2.4.3 on my linux machine. ...
0
votes
1answer
3k views

AttributeError: 'module' object has no attribute

I am trying to get the depth map of two stereo images. I have taken the code from http://docs.opencv.org/trunk/doc/py_tutorials/py_calib3d/py_depthmap/py_depthmap.html I get the following error: ...
0
votes
1answer
546 views

Error Ubuntu 13.10 blackscreen [duplicate]

I installed Ubuntu 13.10 in my PC recently, also installed Eclipse, Qt Creator, Blender and Synaptic (to download all the packages in order to work with OpenCV) everything went fine until i shut down ...
0
votes
1answer
589 views

couldn't load image in opencv(python)

I installed opencv & python in ubuntu12.04. I'm unable to load the image. I tried $ from cv2.cv import * which showed the error "from: can't read /var/mail/cv2.cv" How to solve this?
-1
votes
2answers
2k views

Error when installing OpenCV 2.1

I want to install openCV in my ubuntu 12.04 but I get this following error. [ 45%] Building CXX object src/cxcore/CMakeFiles/cxcore_pch_dephelp.dir/cxcore_pch_dephelp.o In file included from ...
0
votes
1answer
248 views

Blank screen in Ubuntu 13.10 after login; missing opengl

I had aworking Ubuntu 13.10 on my laptop till yesterday when I installed OpenCV 2.4. It did not cause any immediate problem yesterday but when I turned on the power this morning, I did not get a ...