opencv-java-samples

how to install opencv for MAC using macport

sudo port selfupdate
sudo port install opencv +java

Check the installation

port contents opencv | grep java

It should show

/opt/local/share/OpenCV/java/libopencv_java343.dylib
/opt/local/share/OpenCV/java/opencv-343.jar

how to add opencv support for java application

• alternative 1: add libopencv_java343.dylib as Java extension in MAC

    cp /opt/local/share/OpenCV/java/libopencv_java343.dylib /Library/Java/Extensions
  

• alternative 2: run application with java.library.path

    java -Djava.library.path=/opt/local/share/OpenCV/java