问题
I have a program that processes videos using foreground detection in OpenCV 2.4.9/python/on windows and packaged for a windows executable using py2exe. I recently updated opencv to opencv3 and repackaged my program. When i run on my computer (with opencv3 installed locally) everything goes fine.
However, when a user goes and downloads the program and runs it on another computer, they get the warning
Failed to load OpenCL runtime
This just seems to be just a warning, and i can detect no performance issues.
I have a couple options. I can just suppress this specific warning in a try statement, or i can somehow turn off the OpenCL on my computer for packaging the program. Suggestions on either strategy would be appreciated. Anything i am overlooking? To my understanding the OpenCL library is for acceleration using GPU.
Thanks,
回答1:
the solution will be compiling the OpenCV libs without OpenCL and then link them to your application
回答2:
I had encounter the same problem, here's my solution:
go to the Intel website and download the OpenCL library, then unzip it
run the
install.shfile
If your install fails because of update-alternatives errors, maybe it's because you are using Ubuntu/Debian distro and the Intel install package has a wrong setting with it.
To solve this, xfanzone did a very good job on this. Take a look here.
download the patch zip file and patch your OpenCL package
install it again, now it should work fine
回答3:
If you just don't need to use OpenCL, you can set the environment var as below:
export OPENCV_OPENCL_RUNTIME=999
Sometimes, if you want to turn on the opencl:
export OPENCV_OPENCL_RUNTIME=
来源：https://stackoverflow.com/questions/25723059/failed-to-load-opencl-runtime-opencv3-python