Can't find opencv-249.jar file

asked May 28 '14

Alejandro Silvestri

6 ●1 ●1 ●3

updated May 28 '14

berak
32993 ●7 ●81 ●312

Recently downloaded and installed OpenCV 2.4.9 on Ubuntu 14 (decompress, cmake, make, install). Now I'm following "Using OpenCV Java with Eclipse" tutorial http://docs.opencv.org/doc/tutorials/introduction/java_eclipse/java_eclipse.html

It refers to C:\OpenCV-2.4.6\build\java\opencv-246.jar (of course, this example is about opencv version 2.4.6 on Windows), but I can't find the jar file in the drive, not even the "build" subdir in the uncompressed directory.

Any hint? Thank you

Comments

check the cmake output again. it should look similar to this(sorry, windows again):

  Java:
    ant:                         E:/app/bin/ant.bat (ver 1.9.1)
    JNI:                         D:/Programme/Java/jdk1.6.0_16/include D:/Programme/Java/jdk1.6.0_16/include/win32 D:/Programme/Java/jdk1.6.0_16/include
    Java tests:                  NO

you will need ant installed before

berak (May 28 '14)edit

Thanks berak, you gave me the starting point to investigate. It turned out that it's needed to have JAVA_HOME environmental variable set (and pointing to jdk home directory) before running cmake. After "export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64" (in my case, of course), cmake generated both: build/bin/opencv-249.jar build/lib/libopencv_java249.so

My only remaining issue is that "make install" didn't copy these files to any place (like usr/local/lib or else), so I can't remove the original opencv directory.

I think I'll post a new question about it. Thank you very much.

Alejandro Silvestri (Jun 1 '14)edit

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Hi, i tried what u said but the results are the same..(i.e., no jar file) i have few doubts in mind 1) should ant be installed in the system? 2) what are the options to be used while using cmake command? 3) I am installing opencv-3.0.0 .. can version be a problem?

If u can help in any way...Thanks!!

Sbmsgl (Oct 10 '14)edit

I found out "ant" should be installed to get .jar and .so files in the respective directories ...

Sbmsgl (Oct 10 '14)edit

also files(both opencv-300.jar and libopencv_java300.so) are copied to /usr/local/share/OpenCv/java(in my case) directory during make install.

Sbmsgl (Oct 10 '14)edit

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Can't find opencv-249.jar file

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Can't find opencv-249.jar file