Cross compile opencv raspberry pi

asked 2013-12-29 16:21:28 -0600

justas
1 ●2

Hi Guys,

I was trying to cross compile opencv to raspberry pi from my ubuntu (12.04). I actually almost succeeded, I mean it compiles, I copy the binary file to raspberry and then getting error:

./test: error while loading shared libraries: libopencv_imgproc.so.3.0 cannot open shared object file: No such file or directory.

According to my knowledge that means that it looks for that particular library. Does it mean that I need to have same version of opencv installed on both machines (host and target)?

If yes, then cross compilation becomes useless as I can compile natively on raspberry pi.

If no, how to walk around this error?

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answered 2013-12-30 02:22:14 -0600

Alexander Smorkalov

5862 ●2 ●22 ●58 http://alex-alchemist....

You've built OpenCV as a shared library. So, you need to install it on device to run your app. Cross compilation is rather faster then native compilation on RPi.

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But can I build opencv in a way, that I would not need to have it on RPi? Because opencv is not so small. Also the one I made on host is 3.0 and I installed on rpi using apt-get install libopencv-dev which gave me 2.3