#Brew install opencv 3.1 how to#
#Brew install opencv 3.1 update#
#Brew install opencv 3.1 download#

(Git branch to 3.4 to install that version.) 1.1 Make build folder The installation will include contrib modules. Sudo apt install libjasper1 libjasper-dev

#Brew install opencv 3.1 how to#

How to install jasper: sudo add-apt-repository 'deb xenial-security main' sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev

sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev Requirements sudo apt-get install build-essential I put the answer here so it has wider visibility. The following, tested on Ubuntu 18.04, installs OpenCV 4.1.0-dev and does not use python virtual environment. Step 3 Follow the remaining steps as mentioned in the link till sudo make install Note: Don't forget to change your python version and path in PYTHON_DEFAULT_EXECUTABLE. Instead of cmake mentioned on the page, use this, cmake -D CMAKE_BUILD_TYPE=Release -D BUILD_NEW_PYTHON_SUPPORT=ON -D BUILD_opencv_python3=ON -D HAVE_opencv_python3=ON -D PYTHON_DEFAULT_EXECUTABLE=/usr/bin/python3.4.

You can find that out by using command whereis python3.4 (or, your version). Step 2 For installing opencv in specific version of python (ubuntu), you have to set the default (PYTHON_DEFAULT_EXECUTABLE) with the path to where your python is installed. I did sudo apt-get install python3-dev python3-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev That optional one too.!! And don't forget to change the python version for which you are installing. Note: Install all the 3 packages mentioned at start. Step 1 Follow all the steps as mentioned on openCv installation part till cmake. I will share the steps I followed so as to help others on it. I wanted opencv to be installed for python 3.4 but every time it was getting installed on 2.7 version. Installing opencv on python3.4 version has been quite a task. I am currently working with Google VM (ubuntu 14.04).

After the process is finished, run make and then sudo make install.

Then rename the folder opencv to opencv-3Д¬reate a build directory, move to it and run: cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local.

Create a temporary directory, move into it and run: git clone.

To solve this problem, weвЂ™ll copy the file from the current location to the expected location: sudo cp /usr/include/x86_64-linux-gnu/python3.5m/pyconfig.h /usr/include/python3.5m/ The first part of the output is the expected location & the second part shows the current location of the config file.

Copy the dev files: python3.5-config -includes The output should be similar to: -I/usr/include/python3.5m -I/usr/include/x86_64-linux-gnu/python3.5m.

Install the developer packages for Python3.5: sudo apt-get install python3.5-dev.

#Brew install opencv 3.1 update#

Update the repository: sudo apt-get updateДownload the required packages to compile OpenCV: sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev.

Here are the instructions I tested successfully and mentioned in the link above:

#Brew install opencv 3.1 download#

At the latest version it's fixed, try:Д«ut I didn't download dev python and OpenCV, I took directly from github: Built target pch_Generate_opencv_videoioД¬MakeFiles/Makefile2:5596: recipe for target 'modules/videoio/CMakeFiles/opencv_videoio.I have OpenCV version 3.1 on Ubuntu 16.04 LTS to work with Python 3.5.1. Built target pch_Generate_opencv_imgcodecs Built target opencv_imgcodecs_pch_dephelp Built target pch_Generate_opencv_imgproc Makefile:160: recipe for target 'all' failed Make: *** Error 1Д¬MakeFiles/Makefile2:5596: recipe for target 'modules/videoio/CMakeFiles/opencv_videoio.dir/all' failed Modules/videoio/CMakeFiles/opencv_videoio.dir/build.make:254: recipe for target 'lib/libopencv_videoio.so.3.2.0' failed usr/local/lib/libx264.a: error adding symbols: Bad valueД¬ollect2: error: ld returned 1 exit status usr/bin/ld: /usr/local/lib/libx264.a(common.o): relocation R_ARM_MOVW_ABS_NC against `a local symbol' can not be used when making a shared object recompile with -fPIC I get this error Built target opencv_imgcodecs Log 'Setting up local python environment.