OpenCV uses cmake to compile, but it is not cross-compile friendly. I (and many others) have the same question as you. When cross compiled, it seems that the runtime searching directory of opencv lib is two level top of current, i.e., ../../lib, a relative directory. It will not search the system lib directory such as /lib /usr/lib or /usr/local/lib. I don't know why.
So my suggestion is as follows:
you can either recompile opencv just on your beagleboard(which is I do, it's easy) or put your programs under /home/XXX/ and put your cross-compiled opencv libs in /lib so that the libs can be searched at runtime.
This link is very useful when you want to compile it on your beagleboard ubuntu.
http://www.ozbotz.org/opencv-installation/Good Luck!
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[hidden email], avadhut chaudhari <avadhut_chaudhari@...> wrote:
>
> Hello All,
> I really need help. I have installed Eclipse on Ubuntu 11.10. I am using arm-linux-enuabi-gcc and arm-linux-enuabi-g++ cross compilers.
>
> I am able to cross compile & run arm binary (executable) for the Hello World program on Beagle Board. But When I build opencv program on Eclipse, it creates armel binary.When I copied and run that binary on Beagle Board, I got following error message-
>
> error while loading shared libraries: libopencv_core.so.2.2: cannot open shared object file: No such file or directory
>
> I already have Opencv 2.3.1 running on Ubuntu. But I build Opencv 2.2 for cross compilation on ARM using following link
>
http://processors.wiki.ti.com/index.php/Building_OpenCV_for_ARM_Cortex-A8. Here I have used Codesourcery arm-none-linux-gnueabi-gcc and arm-none-linux-gnueabi-g++
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> Do I need to rebuild Opencv 2.2 using using arm-linux-enuabi-gcc and arm-linux-enuabi-g++ cross compilers ? or Do I need to set arm-none-linux-gnueabi-gcc and arm-none-linux-gnueabi-g++ in Eclipse. What I am missing ? Please give me pointer.
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> Thanks,
> Avadhut
> " The Will of God will never take you where the Grace of God will not protect you."
>
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