Using JavaCV with Kotlin

Question

I\'m currently attempting to start a project using JavaCV in Kotlin. I\'m using IntelliJ Idea as my IDE. I\'m using JavaCV 1.3.2 and OpenCV 3.20. This is my setup for the modul

Answer 1

on MacOS, you don't need to install a native library. On OpenCV3.41, as fetched from

    
      org.openpnp
      opencv
      3.4.2-1
    

I looked in the library (jar tf ~/.m2/repository/org/openpnp/opencv/3.4.2-1/opencv-3.4.2.-1.jar) and found dlls and whatnot in it:

jar tf *1.jar | grep nu
...
nu/pattern/opencv/osx/
nu/pattern/opencv/osx/x86_64/
nu/pattern/opencv/osx/x86_64/README.md
nu/pattern/opencv/osx/x86_64/cmake.log
nu/pattern/opencv/osx/x86_64/libopencv_java342.dylib
...

This led me to this StackOverflow question on nu.pattern which show how to use the nu.pattern in code.

static {
    nu.pattern.OpenCV.loadShared();
    System.loadLibrary(org.opencv.core.Core.NATIVE_LIBRARY_NAME);
}

This prologue code enabled sample apps which used to fail as above to run.