Download the OpenCV library from its website.Įxtract the downloaded OpenCV file in a location of your choice and open CMake ( cmake-gui ).
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Linux package management systems ( apt-get, yum, etc.) may provide the needed version of the OpenCV library.Īs first step, download and install CMake and Apache Ant, if you don’t have any of these. Please, note: the following instructions are also useful if you want to compile OpenCV under Windows or macOS. Please, notice that this method doesn’t work if you update OpenCV from a previous version: you need to uninstall OpenCV and install it again. Then, after saving the file, you can effectively install OpenCV:Īfter the installation of OpenCV, the needed jar file and the dylib library will be located at /usr/local/Cellar/opencv/3.x.x/share/OpenCV/java/, e.g., /usr/local/Cellar/opencv/3.3.1/share/OpenCV/java/. In the text editor that will open, change the line: To install OpenCV (with Java support) through Homebrew, you need to edit the opencv formula in Homebrew, to add support for Java: Otherwise, install it with Homebrew:Īnt should be available at /usr/local/bin/ant. Otherwise, continue with the OpenCV installation.Īs a prerequisite, check that Apache Ant is installed. If macOS asks for installing such tools, proceed with the download and installation. After installing Homebrew, you have to check whether the XCode Command Line Tools are already installed on your system. The quickest way to obtain OpenCV under macOS is to use Homebrew.
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