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javaeclipseopencvjavacvface-recognition

How to remove this Exception "Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniopencv_objdetect in java.library.path"

I'm working on Face Recognition Project by using OpenCV 2.4.9, JavaCV 0.7,JAVA version 8 and Eclipse IDE... I am getting these Exceptions continuously.. Is there something wrong in the follwoing code? It's not my complette code... Please Someone help me as soon as possible...

import com.googlecode.javacpp.Loader;
import com.googlecode.javacv.cpp.opencv_objdetect;
Loader.load(opencv_objdetect.class);

Exceptions:

Exception in thread "main" java.lang.UnsatisfiedLinkError: no jniopencv_objdetect in java.library.path
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.loadLibrary0(Unknown Source)
    at java.lang.System.loadLibrary(Unknown Source)
    at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:711)
    at com.googlecode.javacpp.Loader.load(Loader.java:586)
    at com.googlecode.javacpp.Loader.load(Loader.java:540)
    at com.googlecode.javacv.cpp.opencv_objdetect.<clinit>(opencv_objdetect.java:91)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Unknown Source)
    at com.googlecode.javacpp.Loader.load(Loader.java:561)
    at FaceRecognizer.<init>(FaceRecognizer.java:56)
    at FaceRecognizer.main(FaceRecognizer.java:112)
Caused by: java.lang.UnsatisfiedLinkError: C:\Users\XYX\AppData\Local\Temp\javacpp183187286948746\jniopencv_objdetect.dll: Can't find dependent libraries
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.lang.Runtime.load0(Unknown Source)
    at java.lang.System.load(Unknown Source)
    at com.googlecode.javacpp.Loader.loadLibrary(Loader.java:700)
    ... 8 more
Solution

  • This page gives a description of how to get an OpenCV Java sample running. There should be two things that you need to do:

    1. You need to call System.LoadLibrary specifying the OpenCV DLLs that it uses

      System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

    2. Make sure the DLL in somewhere where it can be found by the JVM. There are a few ways if doing that. I don't use Eclipse but this seems to give a good explanation. Alternatively, a simple bodge just to get things working is to drop the DLL into the windows\system32 directory

    Finally there may be an issue if you are running a 64 bit JVM but trying to use a 32 bit DLL. If you are still having trouble make sure you are using matching JVM and DLL.