Build Java wrappers OpenCV 3.3.0 with contrib

edit

did you already run cmake? show us cmake's generating output

cmake output looks OK. i can't say anything about MinGW because i used MS Visual Studio to compile. i recommend you to use MS Visual Studio

"After the build, I received a opencv_java320.jar and a libopencv_java320.dll" try to rename libopencv_java320.dll -> opencv_java320.dll

After renaming I can successfully System.loadLibrary(Core.NATIVE_LIBRARY_NAME), but then I receive an unsatisfied link error on the first line of code using OpenCV: Exception in thread "main" java.lang.UnsatisfiedLinkError: org.opencv.core.Mat.n_Mat()J

try the files someone shared https://github.com/cesardelgadof/Open...

show your java code also

try

import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
public class Hello
{
   public static void main( String[] args )
   {
      System.loadLibrary( Core.NATIVE_LIBRARY_NAME );
      Mat mat = Mat.eye( 3, 3, CvType.CV_8UC1 );
      System.out.println( "mat = " + mat.dump() );
   }
}

I was using a 32 bit jdk so I changed to a 64 bit one, now I am getting:

Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\OpenCV-
3.2.0\build\install\java\opencv_java320.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1941)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1857)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at BIFtest.main(BIFtest.java:167)
ERROR: JDWP Unable to get JNI 1.2 environment, jvm->GetEnv() return code = -2
JDWP exit error AGENT_ERROR_NO_JNI_ENV(183):  [util.c:840]

sorry, maybe i disguided you. again i say. if you use MS Visual Studio probably you will solve all problems.

otherwise you can download compiled dlls from https://github.com/cesardelgadof/Open...