My intent is to install opencv for use with C++ on macOs 10.12.6 (16G29). It seems the suggested method is using homebrew to install.
I am following this tutorial: https://www.pyimagesearch.com/2016/12/19/install-opencv-3-on-macos-with-homebrew-the-easy-way/
I used this command to install:
brew install opencv3 --with-contrib --c++11
and everything finished without error but I received the following warnings:
Warning: opencv: this formula has no --c++11 option so it will be ignored!
Warning: opencv: this formula has no --with-contrib option so it will be ignored!
From brew info opencv3:
$ brew info opencv3
opencv: stable 3.3.1 (bottled)
Open source computer vision library
https://opencv.org/
/usr/local/Cellar/opencv/3.3.1_1 (519 files, 95.9MB) *
Poured from bottle on 2017-11-21 at 08:11:10
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/opencv.rb
==> Dependencies
Build: cmake ✘, pkg-config ✘
Required: eigen ✔, ffmpeg ✔, jpeg ✔, libpng ✔, libtiff ✔, openexr ✔, numpy ✔, tbb ✔
==> Requirements
Required: python ✔, python3 ✔
Has anyone had success installing opencv3 for c++ development on macOs?
I was getting the same error. Take a look at the output of "brew info opencv". It turns out that the opencv was moved to homebrew-core:
https://github.com/Homebrew/homebrew-core/blob/master/Formula/opencv.rb
To show the list of available '--with-*' options allowed to be passed to homebrew during an install, use:
brew options opencv
I would assume that it returns nothing, since the formula does not define any such options anymore.
Installing Opencv
If you have not installed opencv, install with:
brew install opencv
This should just install from source by downloading and compiling opencv with the packages listed in the homebrew formula. Since there are currently no options in the opencv formula, passing in something like --with-*, for example --with-contrib, will not be recognized as a valid option. However the formula actually happens to install certain things like contrib by default now.
If you already have opencv installed, try reinstalling:
brew reinstall opencv
This will reinstall from source as well.
(Fyi, recompile takes about 10-20 minutes)
I have following issue of installing pygame package.
In file included from src/_numericsurfarray.c:23:
src/pygame.h:106:10: fatal error: 'SDL.h' file not found
#include <SDL.h>
^
1 error generated.
error: Setup script exited with error: command 'gcc' failed with exit status 1
System information
Mac OS-10.9.2
python version- Python 2.7.5 :: Anaconda 1.6.1 (x86_64)
Any suggestion will be greatly appreciate ? Thanks.
Here (OSX Mavericks) I got able to install this way:
brew install sdl sdl_image sdl_mixer sdl_ttf portmidi
pip install https://bitbucket.org/pygame/pygame/get/default.tar.gz
("default" branch is on commit e3ae850 right now)
Source: https://bitbucket.org/pygame/pygame/issue/139/sdlh-not-found-even-thought-it-exists#comment-3822470
See this other StackOverflow question too: PyGame in a virtualenv on OS X with brew?
I had the same issue. I tried all versions of the answers to this question including variations of pip and pip3. Finally, the one that worked for me was:
sudo easy_install pygame
Note, however, that: (1) https://setuptools.readthedocs.io/en/latest/easy_install.html says that easy_install is deprecated and recommends using pip. (2) pygame is installed in the old standard python 2.7 folder rather than in the python 3.8.3 that I just installed -- though I was able to use it successfully in VSCode.
My system is also OSX10.9.2,and I also meet you problem,and I'm still try some;
Maybe this will be help for you:
there are some step:
1.Install [Quartz](https://xquartz.macosforge.org/landing/);
2.Install Xcode-Command-Line,
but you may cant install it by `xcode-select --install`,
so you can down from
https://developer.apple.com/downloads/index.action ;
I suggest you setup xcode,and this really solute my some problem;
3.`brew tap homebrew/headonly`
`brew install smpeg --HEAD`
`brew install sdl sdl_image sdl_mixer sdl_ttf portmidi`
4. `sudo pip install hg+http://bitbucket.org/pygame/pygame`;
if you clone this repo and try `python setup.py install`,you may meet some weird problem;
I have try install kivy which is base on pygame and I try lots of times,but just success install pygame one time.Then I uninstall it and also can't install it ;(
some refer:
http://jamesfriend.com.au/installing-pygame-python-mac-os-108-mountain-lion
http://juliaelman.com/blog/2013/04/02/installing-pygame-on-osx-mountain-lion/
=======update
Now I have install pygmae sucess,remeber you should install xcode,not only xcode-command-line!
I managed to install pygame on Mac OSX 10.14.4 using the following:
brew install sdl sdl_image sdl_mixer sdl_ttf portmidi
sudo -H pip3.8 install pygame
This Work for me:
If you haven't installed Python/pip via homebrew (you're using the system-installed Python), you would likely need to run sudo pip3 install pygame.
Before running pip3 install pygame, I had also installed Command Line Tools for XCode), as well as XQuartz, and the following homebrew packages: brew install sdl sdl_image sdl_mixer sdl_ttf smpeg portmidi.
If homebrew fails to install smpeg you might need to do the following:
brew tap homebrew/headonly
brew install --HEAD smpeg
Source: http://jamesfriend.com.au/installing-pygame-python-mac-os-108-mountain-lion
I had installed OpenCV following these steps. After trying to compile one example, I got this error:
OpenCV Error: Unspecified error (The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvNamedWindow, file /home/nick/.Apps/opencv/modules/highgui/src/window.cpp, line 516
terminate called after throwing an instance of 'cv::Exception'
what(): /home/nick/.Apps/opencv/modules/highgui/src/window.cpp:516: error: (-2) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function cvNamedWindow
CMakeLists.txt
cmake_minimum_required(VERSION 2.8.4)
project(threadTest)
find_package( OpenCV REQUIRED )
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Wextra -pthread")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "/home/nick/ClionProjects/threadTest")
set(SOURCE_FILES main.cpp)
add_executable(threadTest ${SOURCE_FILES})
target_link_libraries( threadTest ${OpenCV_LIBS} )
How can I solve it?
First check whether libgtk2.0-dev is installed properly. If you have installed aptitude package manager, run the following:
sudo aptitude search libgtk2.0-dev
It should return like this:
i libgtk2.0-dev - development files for the GTK+ library
p libgtk2.0-dev:i386 - development files for the GTK+ library
You need to build the files once again. Locate your OpenCV folder. Create a new folder and name it Release. Enter into this folder. For example,
cd /home/user_name/OpenCv
mkdir Release
cd Release
Now build using CMake with following command:
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D WITH_V4L=ON -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON -D WITH_QT=ON -D WITH_GTK=ON -D WITH_OPENGL=ON ..
Remember to put WITH_GTK=ON during CMake.
After this step, enter the command,
make
sudo make install
This should resolve your problem. If you have broken dependencies for libgtk2.0-dev, then install a fresh copy of libgtk2.0-dev using aptitude.
sudo aptitude install libgtk2.0-dev
If you installed OpenCV using the opencv-python pip package, be aware of the following note, taken from opencv-python:
IMPORTANT NOTE
macOS and Linux wheels have currently some limitations:
video related functionality is not supported (not compiled with FFmpeg)
for example cv2.imshow() will not work (not compiled with GTK+ 2.x or Carbon support)
Also note that to install from another source, first you must remove the opencv-python package.
To install OpenCV in Ubuntu, I followed this guide, and it worked perfectly fine: Ubuntu 16.04: How to install OpenCV
In order to improve Nic Szer's answer I want to explain how to fix this error on macOS in three simple steps.
Remove installed OpenCV version to avoid messing up later
pip3 uninstall opencv-python
Lower your Python version to 3.5 (the current version, 3.6, has problems with Conda which we will use to install OpenCV)
conda install python=3.5
Finally, use Conda to install a working version of OpenCV
conda install -c menpo opencv3
And then voilà: OpenCV will start working on your macOS (macOS v10.12.4 (Sierra)).
For Windows, just uninstall the OpenCV package:
pip uninstall opencv-python
And reinstall:
pip install opencv-python
In case what is mentioned in previous answers doesn't work, try:
pip install opencv-python
for Python 2, or
pip3 install opencv-python
for Python 3.
For me (Arch Linux, Anaconda with Python 3.6), installing from the suggested channels menpo or loopbio did not change anything. My solution was to
install pkg-config (sudo pacman -Syu pkg-config),
remove opencv from the environment (conda remove opencv) and
re-install opencv from the conda-forge channel (conda install -c conda-forge opencv)
conda list now returns opencv 3.3.0 py36_blas_openblas_203 [blas_openblas] conda-forgeand all windows launched using cv2 are working fine.
I have had to deal with this issue a couple of times, and this is what has worked consistently thus far:
conda remove opencv
conda install -c menpo opencv
pip install --upgrade pip
pip install opencv-contrib-python
I have the solved using Anaconda 3 installing on Ubuntu 16.04 (Xenial Xerus).
I have used the PyCharm editor for my Python code.
I am using the Python 3.6 version.
I solved the issue using these processes.
IDEA: we need to install the package opencv-contrib-python package from PyCharm.
After installing OpenCV using vcpkg on Ubuntu, there is a known issue with vcpkg where you'll end up with the exact same error message as the top of this post with no access to highgui:
OpenCV(4.3.0) Error: Unspecified error (The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Cocoa support.
If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvNamedWindow,
file .../vcpkg/buildtrees/opencv4/src/4.3.0-0c6047baf6.clean/modules/highgui/src/window.cpp, line 634
Caught exception: OpenCV(4.3.0) .../vcpkg/buildtrees/opencv4/src/4.3.0-0c6047baf6.clean/modules/highgui/src/window.cpp:634:
error: (-2:Unspecified error) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Cocoa support.
If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function 'cvNamedWindow'
The problem is vcpkg passes in the build option -DWITH_GTK=OFF when building OpenCV. The open issue: https://github.com/microsoft/vcpkg/issues/12621
The workaround is the following:
edit the file vcpkg/ports/opencv4/portfile.cmake
find the line that says -DWITH_GTK=OFF and change it to say -DWITH_GTK=ON
run ./vcpkg remove opencv4
run sudo apt-get install libgtk2.0-dev pkg-config
reinstall OpenCV with ./vcpkg install opencv4 or whichever vcpkg command you used
I have Ubuntu 16.04 LTS (Xenial Xerus) environment with GTK 3 preinstalled.
I got the same error for Caffe build (master branch),
Try the following steps, may be it should work for you.
sudo apt-get install libgtk-3-dev
cmake .. (WITH_GTK=ON and other settings),
make
And bingo, the error was gone... in my Python Caffe code
Please note:
The CMake configuration should reflect GTK+ 3.x instead of GTK+ 2.x:
GUI:
-- QT: NO
-- GTK+ 3.x: YES (ver 3.18.9)
-- GThread : YES (ver 2.48.2)
-- GtkGlExt: NO
-- OpenGL support: NO
-- VTK support: NO
I have fixed my issue using this,try it
pip install opencv-python-headless==4.5.3.56
pip install opencv-contrib-python==4.5.3.56
pip install opencv-python==4.5.3.56
I had the same problem, and fixed it by simply reinstalling opencv.
There is no need to uninstall it first.
My issue was solved after installing opencv-contrib-python:
pip install opencv-contrib-python
I tried several of the previous answers the one that worked for me in ubuntu is mentioned in the following steps:
Firstly, remove the current opencv package that is installed in your system by typing in the following command in the terminal conda remove opencv.
If your Python version is 3.6 or above then change it into the stable version which can be done by typing in conda install python=3.5.
Later on, install the opencv package again by giving the following input in terminal conda install -c menpo opencv3
I had the same issue and it has been resolved after uninstalling opencv-python and doing a fresh install.
pip uninstall opencv-python
pip install opencv-python
try this. It worked for me
sudo apt-get install cmake cmake-curses-gui libgtk2.0-dev
pip install opencv-contrib-python
reinstalling and installing with the above command solved my issue but just after closing all instances of pyhton and anaconda because apparently a cache version of the library was being kept in my system.
Hence, uninstall opencv (try with pip and conda), close the IDE and reboot it, check if you can import opencv. If you still can import it, try to run the code:
help(cv2)
and check where the files are stored and delete that folder.
Repeat the process untill you are sure it is uninstalled so you can reinstall opencv full package (option 2 - see https://pypi.org/project/opencv-python/ )
I had the same issue and it has been resolved after uninstalling opencv-python version 4 and then installing the OpenCV version 3.
pip install opencv-python==3.4.9.33
I have fixed this issue by replacing
cvDestroyWindow("showImage");
by
cvDestroyWindow("ShowImage");
I have installed Opencv 2.4.8 on my Linux(ubuntu 14.04) machine and it works fine. When I'm trying to test SURF descriptor using sample code from the online official documentation the compiler gave me no such file or director error for #include<opencv2/nonfree/nonfree.hpp>
.
From this link i have tried to update the opencv library for the nonfree modules with but still no success.
To make history short how can include SURF descriptor to my project or any idea how to fix this?
sudo apt-get update
sudo add-apt-repository --yes ppa:xqms/opencv-nonfree
sudo apt-get update
sudo apt-get install libopencv-nonfree-dev
You need to enable OPENCV_ENABLE_NONFREE when you build your opencv version.
I guess it goes like this in the prompt command cmake -D OPENCV_ENABLE_NONFREE=ON ..
But if you prefer cmake GUI see the picture below.
picture
On Mac OS Maverick I have installed OpenCV with a brew install opencv.
I created a simple program (copied from this tutorial). Compilation worked fine but when running the executable I get the following error:
dyld: Library not loaded: /usr/local/lib/libpng16.16.dylib
Referenced from: /usr/local/lib/libopencv_highgui.2.4.dylib
Reason: Incompatible library version: libopencv_highgui.2.4.dylib requires version 33.0.0 or later, but libpng16.16.dylib provides version 32.0.0
Trace/BPT trap: 5
I checked that libpngwas properly installed via brew install libpng and ran a brew upgrade to make sure everything was up-to-date.
Running locate libpng16.dylib returns:
/Applications/GIMP.app/Contents/Resources/lib/libpng16.16.dylib
/usr/local/Cellar/libpng/1.6.10/lib/libpng16.16.dylib
/usr/local/Cellar/libpng/1.6.12/lib/libpng16.16.dylib
/usr/local/Cellar/libpng/1.6.13/lib/libpng16.16.dylib
/usr/local/Cellar/libpng/1.6.15/lib/libpng16.16.dylib
/usr/local/lib/libpng16.16.dylib
Any idea?
The best solution is to fully uninstall libpng and re-install it:
$ sudo brew uninstall libpng
$ sudo rm '/usr/local/bin/libpng-config'
$ for i in `brew link --overwrite --dry-run libpng`; do sudo rm $i; done
$ sudo brew install libpng
If you need to install opencv:
$ sudo brew tap homebrew/science
$ sudo brew install opencv
Homebrew should ensure that you the correct dependencies install. However, it's possible that you have more than one version of libpng16 installed at different paths. Have a look in...
/usr/lib
/opt/local/lib
If you find any versions of the library in these locations then they may be causing the wrong one to be loaded when your program starts. As a quick fix you can try typing DYLD_LIBRARY_PATH=/usr/local/lib before your program name on the command line. In the longer term you may need to remove the conflicting versions altogether.
This answer is for OSX users who installed through Conda, more specifically the conda-forge channel (I'm not sure about others).
Conda ends up installing its own libpng in the environment and you can update it with conda upgrade libpng.
I guess this is basically a bug with the opencv recipe on conda-forge.