Hi i try use OpenCV like in "introduction in java development", but i dont know what i must edit in
. When i change my folder with extracted OpenCV, Eclipse write no opencv_java244 in java.library.path. What i do wrong?
After much trial and error(!), assuming OpenCV is installed on a Windows machine at <opencv-dir>:
<opencv-dir>\build\java.<opencv-dir>\build\java\x86.<opencv-dir>\build\java\x64.Therefore, on my 64-bit Windows 7 PC with OpenCV installed at D:\opencv:
D:\opencv\build\java.D:\opencv\build\java\x64.Answer for mac users:
It seems no one has posted the location of the OpenCV Java native directory/files for mac users!
After a great deal of searching, I finally found it:
On Mac OSX Mavericks, having done a Cmake build of 2.4.8, I found that setting the "Native Library Location" to the directory "build/lib" did the trick!
It seems that "build/lib" contains a file named "libopencv_java248.dylib", which is apparently exactly what the Mac version of OpenCV wants as its native file!
As an example, for my project, the full location was:
/Users/Flynn/Documents/Eclipse Main Workspace/_Libraries/opencv-2.4.8/build/lib
Where "opencv-2.4.8" was the copy of 2.4.8 that I downloaded, and where "/build" is the build folder that I was instructed to make by this tutorial.
Hope this helps any fellow mac users!
Java API is only wrapper for native C++ library. Your java machine must find it in run time. Specify path to the native OpenCV libraries in project settings: select project, right click->properties, "java build path", "libraries" tab, select the OpenCV jar, expand it, select "Native library location", click "edit...", folder chooser dialog will appear.
So, for a 64-bit Windows machine, that would be ...\opencv\build\x64\mingw\bin or ...\opencv\build\x64\mingw\lib?
Have tried D:\opencv\build\x64\mingw\bin, D:\opencv\build\x64\mingw\lib and D:\opencv\build\x64\mingw and I still get the same "no opencv_java244 in java.library.path" error as goodspeed. A bit more information would be a real help. What identifies the native library's location?
Asked: 2013-02-23 04:52:04 -0600
Seen: 28,266 times
Last updated: Feb 28 '18
Same problem here..i done everything the vm options in my netbeans project then i get a new error saying : cant find dependent libraries..can anyone help me..Thanks
Don't post a question as an answer. Don't hope any answer : this post is too old. Post your question as a new one. gives opencv version and platform and full error message
"cant find dependent libraries" -- make sure, your opencv dlls are on the PATH env var