java.lang.UnsatisfiedLinkError: org.opencv.core.Mat.n_Mat(III)J?

Question

I\'ve been trying to get opencv working inside of our raspberry pi, but I have not been able to get it working at all. I made a new eclipse project, added in the OpenCV libr

Answer 1

You can load the library like this: first of all call this method

public static void loadOpenCV_Lib() throws Exception {
    // get the model
    String model = System.getProperty("sun.arch.data.model");
    // the path the .dll lib location
    String libraryPath = "C:/opencv/build/java/x86/";
    // check for if system is 64 or 32
    if(model.equals("64")) {
        libraryPath = "C:/opencv/build/java/x64/";
    }
    // set the path
    System.setProperty("java.library.path", libraryPath);
    Field sysPath = ClassLoader.class.getDeclaredField("sys_paths");
    sysPath.setAccessible(true);
    sysPath.set(null, null);
    // load the lib
    System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
}

Note: In code above the OpenCV has extracted in C drive root folder.

Edit: In Eclipse you are also can do it like this: Right click on the project -> Build Path -> Configure Build Path -> Libraries (Tab) -> Expend the OpenCV jar -> Native library location: -> Eidt -> Put this; C:/opencv/build/java/x64/ -> OK -> Apply...