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Questions tagged [opencv]

OpenCV is a function library created by Intel in 1999 to ease creation of computer vision applications.

63 questions
19
votes
3 answers

How can I virtualize an ARM machine in Windows?

I'm interested in developing some programs that use OpenCV, but I want them to run on an ARM environment. Can I virtualize the ARM under a Windows environment with VMWare or VirtualBox or something?
edsonlp1
  • 409
8
votes
3 answers

Install OpenCV in CentOS

I am trying to install OpenCV in CentOS 6. When I run the command [root@cosmas opt]# sudo yum install libtiff4-dev libjpeg-dev libjasper-dev it returned the follow: Loaded plugins: fastestmirror, presto Loading mirror speeds from cached hostfile *…
user275692
  • 81
7
votes
3 answers

Which directory is opencv "installed" in?

Operating System: #! (crunch bang) Dependencies: opencv I am attempting to install cvblob (a library for opencv) and I am at the compilation stage in the directions that of which can be seen below. When I compiled and installed the source code for…
arete
  • 191
6
votes
1 answer

brew link jpeg issues

I am trying to install opencv on Mac OSX Lion. brew install opencv I get the following error (and a few other similar ones) Error: The linking step did not complete successfully The formula built, but is not symlinked into /usr/local You can try…
y2p
  • 163
6
votes
1 answer

25% of my .mp4 have "error reading header" in FFMPEG, OpenCV - but videos all play fine

I've got a Reolink security camera, which saved .mp4 files via FTP to a local server. I've then got my own Python-based application processing those videos. It's been working fine for the past year or so, although I often noticed warnings in the…
DaveWalker
  • 163
5
votes
3 answers

Homebrew is "cowardly refusing" to install OpenCV

I am trying to install OpenCV with Homebrew. After typing sudo brew install opencv I get this error message Cowardly refusing to sudo brew install How can I solve this?
luckyo
  • 61
3
votes
1 answer

Trouble compiling OpenCV for Linux on an Optimus laptop using bumblebee

OK, I have a pretty specific Optimus/CUDA/drivers question: I'm running Ubuntu 12.04 on an Acer Aspire 5750G. This laptop has a CUDA-capable GT540M GPU, but it also has Optimus, so in order to make use of it I need to use bumblebee Following these…
ali_m
  • 756
3
votes
0 answers

stitch multiple microscope images using python

I'm trying to stitch a scan of a large area made using a microscope but I'm not having a whole lot of luck. I started testing with 3 images extracted from a scanning video. I stitched each 2 matching images but when I want to combine the 2 new…
Arno van der Weijden
  • 153
2
votes
0 answers

avoid duplicate frames in ffmpeg

I have a video.mp4 which I need to convert losslessly into a sequence of images. I used ffmpeg -i input.mp4 $filename%05d.tiff but I get a lot (thousands) of duplicated frames. What are they? is it possible to avoid that ffmpeg exports them? I had…
terauser
  • 35
2
votes
2 answers

Accessing Macbook Webcam on Ubuntu via VMWare Fusion

I am writing a program in C++ using opencv. I am working on Ubuntu via VMWare Fusion. When I run my program, it seems the integrated webcam on my Mac is not recognized so I get the error message I coded when not able to access a camera footage.…
Zirhi Daniel
  • 21
2
votes
2 answers

OpenVINO installation on Raspbian - usbboot.rules file issue

I am attempting to install OpenVINO on my Raspberry Pi 3 B+ to use the Neural Compute Stick 2. They just recently released support for this and I am following the installation instructions…
T Linkin
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1
vote
1 answer

OpenCV: ImportError: libavcodec.so.54

I am using Ubuntu, and whenever I try to import cv2 to python I get the following error: ImportError: libavcodec.so.54: cannot open shared object file: No such file or directory I looked online before posting and was unable to find a solution. I…
dylan7
  • 231
1
vote
3 answers

OpenCL support hardware requirements

Does my machine support OpenCL? I found Conformant Products where the list contains the required hardware requirements. Please find the below screenshots of few of my machine. Does any one of the below support OpenCL? Screenshot from machine…
2vision2
  • 203
1
vote
1 answer

cv.h not found in fedora 15 install of opencv and highgui

I'm writing object tracking software in C++ and using OpenCV and highgui. The problem I have right now is that even after sudo yum install opencv and using the yumex frontend to ensure that all of the packages were installed, cv.h is not found when…
tekknolagi
  • 1,420
1
vote
0 answers

How to install openCV running from Python on OS X

(Step 1) I'm trying to get openCV to run from python on my mac using the MacPorts install, and also trying to follow The Petite Geek's guide: sudo port -v install opencv +python26 It runs for about 10 minutes without errors. (Step 2) I download…
dsg
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