Update README.md #115
Update README.md #115
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| scp $QNX_TARGET/aarch64le/lib/libcam.so.2 qnxuser@$TARGET_HOST:/data/home/qnxuser/opencv/libs | ||
| scp $QNX_TARGET/aarch64le/usr/lib/libpng16.so.16 qnxuser@$TARGET_HOST:/data/home/qnxuser/opencv/libs | ||
| scp $QNX_TARGET/aarch64le/usr/lib/libtiff.so.5 qnxuser@$TARGET_HOST:/data/home/qnxuser/opencv/libs | ||
| scp $QNX_TARGET/aarch64le/usr/lib/liblzma.so.5 qnxuser@$TARGET_HOST:/data/home/qnxuser/opencv/libs |
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All of our test instructions assume you have system files like these installed already. It might be helpful to add a note at the project level README.md pointing to existing documentation for how to create a QNX system.
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I used the ldd command on cv2.cpython-311.so to check for missing dependencies. The output showed that libraries like libjpeg.so, libstdc++.so, libcam.so, and others were not found on the system. Because of this, I had to manually copy them to /data/home/qnxuser/opencv/libs to get OpenCV working. This happened to me both on QEMU and on a BSP, where I had to include them twice
| scp $QNX_TARGET/aarch64le/usr/lib/libpng16.so.16 qnxuser@$TARGET_HOST:/data/home/qnxuser/opencv/libs | ||
| scp $QNX_TARGET/aarch64le/usr/lib/libtiff.so.5 qnxuser@$TARGET_HOST:/data/home/qnxuser/opencv/libs | ||
| scp $QNX_TARGET/aarch64le/usr/lib/liblzma.so.5 qnxuser@$TARGET_HOST:/data/home/qnxuser/opencv/libs | ||
| scp $QNX_TARGET/usr/local/include/opencv4 qnxuser@$TARGET_HOST:/data/home/qnxuser/opencv |
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opencv header files are not needed unless you are compiling on the target, which we don't support.
| # Copy the numpy dependencies to the target | ||
| scp -r $QNX_TARGET/aarch64le/usr/local/lib/python3.11/site-packages/numpy* qnxuser@$TARGET_HOST:/data/home/qnxuser/opencv | ||
| ``` | ||
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| To verify the installation on the target, | ||
| ```bash | ||
| # Must point to opencv libs | ||
| export PYTHONPATH=/data/home/qnxuser/opencv/cv2/python-3.11:$PYTHONPATH | ||
| export OPENCV_LIBDIR=/data/home/qnxuser/opencv/libs | ||
| export OPENCV_CONFIG_PATH=/data/home/qnxuser/opencv/cv2/config.py |
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OPENCV_LIBDIR is already set (on line 213). As far as I can tell OpenCV_CONFIG_PATH is an internal build variable, and will be overridden by the build.
The PYTHONPATH change will help.
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