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Is there a line of code or a command line tool that I can use to tell what version and what bitness is my install of OpenCV. I can see by the folder name that I have 2.4.8 but I need to check the bitness.

Thanks!

Hi all,

After a 2 days of figuring it out, I have successfully built and installed openCV on my Mac and am programming with it using the Java API.

I am trying to understand why do I get a "NATIVE_LIBRARY_NAME cannot be resolved or is not a field" error and why does the compiler not like this line:

System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

To make it work I have to write in the specific library:

System.loadLibrary("opencv_java248");

I create new project in Eclipse and linking the openCV-2.4.8.jar to it. I then set the Native Library Location to "build/lib" which is where the libopencv_java248.dylib file is located. I read that since I am on a Mac there wont be a build/java fodler with the Dlls.

And I am just trying to run this code:

import org.opencv.core.Core; import org.opencv.core.CvType; import org.opencv.core.Mat;

public class HelloWorldOpenCV {

   public static void main( String[] args )
   {
      System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

    System.out.println("Hello, OpenCV");
      //System.load
      Mat mat = Mat.eye( 3, 3, CvType.CV_8UC1 );
      System.out.println( "mat = " + mat.dump() );

   }
}

I have been dealing with this same issue. I pointed my Native Library to the build/lib folder, but I still am getting compile time errors:

System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

NATIVE_LIBRARY_NAME cannot be resolved or is not a field