Opencv Java exception-Collection of common programming errors

Hello I’m getting next exception when trying to run java project that uses opencv libraries:

Exception in thread "main" java.lang.UnsatisfiedLinkError: no opencv_java 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 org.opencv.highgui.Highgui.(
at teste.main(

Can it be caused of wrong installation of opencv? Or maybe some import is missing? I’m trying to follow instructions from here. Also I’m using Windows 7 and I want to create a simple Java project in Eclipse(not Android)

  • So I’ve extracted javacv from OpenCV-2.4.2.exe file to C:\
  • Then executed “cmake -G “MinGW Makefiles” -DBUILD_opencv_java=ON C:\opencv” command and after that, “mingw32-make”. Everything was build without errors or warnings
  • After I’ve added opencv dll’s to my Environment Variables

Thanks for your attention

Originally posted 2013-11-06 03:16:16.