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September 19, 2018 07:27
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How To Install OpenCV 3.3+ with Java on Mac
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| How To Install OpenCV 3.3+ with Java on Mac | |
| 03 Nov, 2017 • I spent a couple hours trying to resolve an UnsatisfiedLinkError with OpenCV and Java on Mac, I found the solution. | |
| If after installing OpenCV on Mac via brew, such as by using | |
| brew install opencv | |
| Then you may be getting an error when trying to use `System.loadLibrary(Core.NATIVE_LIBRARY_NAME)` that says something like: | |
| UnsatisfiedLinkError: no opencv_java331 in java.library.path | |
| The solution to this is to reinstall OpenCV with the proper Java libs. Try the following steps: | |
| brew install ant | |
| brew edit opencv | |
| # change -DBUILD_opencv_java=OFF to ON | |
| brew uninstall opencv # if you installed opencv before | |
| brew install --build-from-source opencv # Note: this may take a long time | |
| You may also need to point your IDE to the Java lib location by using a JVM arg such as: | |
| -Djava.library.path=/usr/local/Cellar/opencv3/XXX/share/OpenCV/java |
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