BuildOpenCV4SPARCK

For OSX

1. Follow this nice instructions up to the point 11: 'make'

2. Once the build is done, copy

   ~/openCV-X.Y.Z/build/bin/opencv-XYZ.jar

   and

   ~/openCV-X.Y.Z/build/lib/libopencv_javaXYZ.dylib

   to the

   sparck/java-classes/lib/ folder and rename

   libopencv_javaXYZ.dylib -> opencv_javaXYZ.dylib

3. now we need to make changes to the Runpath Search path of the dylib.

   a nice description can be found here

   for this, open the terminal and cd to the

   sparck/java-classes/lib

   folder.

   enter

   otool -l opencv_java420.dylib
   

   in the output you will find at the end something like (maybe multiple of those)

   Load command 42
          cmd LC_RPATH
      cmdsize 40
         path <path to a library location>
   

   we first delete them by providing the complete

   install_name_tool -delete_rpath <path> opencv_java420.dylib
   

   and then add our custom path, relative to this library:

   install_name_tool -add_rpath @loader_path/opencv/libs opencv_java420.dylib
   

   now we have to copy all the opencv libraries into (the newly created folders)

   sparck/java-classes/lib/opencv/lib

For Windows

download the desired installer

unzip and copy

\opencv\build\java\x64\opencv_javaXYZ.dll

to the

sparck/java-classes/lib/ folder

The opencv_javaXYZ.jar we build for OSX should already be there, otherwise copy this one, too.