Hello everyone!
I’m brand new to openCV and was hoping to get some assistance in determining whether or not I have Neon / VFPv3 turned on for my Raspberry Pi4 install.
I ended up installing openCV through PIP (pip install opencv-contrib-python) for ease of upgrades, but after I got setup I was noticing some lag. I expected some, but want to be sure optimizations are turned on.
Do you know if PIP enables Neon / VFPv3 during the install? Below is my build information in case that helps.
I really appreciate the assistance!
General configuration for OpenCV 4.5.5 =====================================
Version control: unknown
Extra modules:
Location (extra): /tmp/pip-wheel-5v2wouk5/opencv-contrib-python_f04c010cf0414c5a81144576b45aa287/opencv_contrib/modules
Version control (extra): unknown
Platform:
Timestamp: 2022-02-19T21:25:59Z
Host: Linux 5.10.63-v7l+ armv7l
CMake: 3.22.2
CMake generator: Unix Makefiles
CMake build tool: /usr/bin/make
Configuration: Release
CPU/HW features:
Baseline:
requested: DETECT
C/C++:
Built as dynamic libs?: NO
C++ standard: 11
C++ Compiler: /usr/bin/c++ (ver 8.3.0)
C++ flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
C++ flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
C Compiler: /usr/bin/cc
C flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
C flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
Linker flags (Release): -Wl,--gc-sections -Wl,--as-needed
Linker flags (Debug): -Wl,--gc-sections -Wl,--as-needed
ccache: NO
Precompiled headers: NO
Extra dependencies: /usr/lib/arm-linux-gnueabihf/liblapack.so /usr/lib/arm-linux-gnueabihf/libcblas.so /usr/lib/arm-linux-gnueabihf/libatlas.so /usr/lib/arm-linux-gnueabihf/libjpeg.so /usr/lib/arm-linux-gnueabihf/libwebp.so /usr/lib/arm-linux-gnueabihf/libpng.so /usr/lib/arm-linux-gnueabihf/libtiff.so openjp2 /usr/lib/arm-linux-gnueabihf/hdf5/serial/libhdf5.so /usr/lib/arm-linux-gnueabihf/libpthread.so /usr/lib/arm-linux-gnueabihf/libsz.so /usr/lib/arm-linux-gnueabihf/libz.so /usr/lib/arm-linux-gnueabihf/libdl.so /usr/lib/arm-linux-gnueabihf/libm.so Iconv::Iconv dl m pthread rt
3rdparty dependencies: libprotobuf ade ittnotify IlmImf quirc
OpenCV modules:
To be built: alphamat aruco barcode bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dnn_superres dpm face features2d flann fuzzy gapi hdf hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot python3 quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking video videoio videostab wechat_qrcode xfeatures2d ximgproc xobjdetect xphoto
Disabled: freetype world
Disabled by dependency: -
Unavailable: cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv java julia matlab ovis python2 sfm ts viz
Applications: -
Documentation: NO
Non-free algorithms: NO
GUI: GTK3
GTK+: YES (ver 3.24.5)
GThread : YES (ver 2.58.3)
GtkGlExt: NO
VTK support: NO
Media I/O:
ZLib: /usr/lib/arm-linux-gnueabihf/libz.so (ver 1.2.11)
JPEG: /usr/lib/arm-linux-gnueabihf/libjpeg.so (ver 62)
WEBP: /usr/lib/arm-linux-gnueabihf/libwebp.so (ver encoder: 0x020e)
PNG: /usr/lib/arm-linux-gnueabihf/libpng.so (ver 1.6.36)
TIFF: /usr/lib/arm-linux-gnueabihf/libtiff.so (ver 42 / 4.1.0)
JPEG 2000: OpenJPEG (ver 2.3.0)
OpenEXR: build (ver 2.3.0)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES
Video I/O:
DC1394: NO
FFMPEG: YES
avcodec: YES (58.35.100)
avformat: YES (58.20.100)
avutil: YES (56.22.100)
swscale: YES (5.3.100)
avresample: NO
GStreamer: NO
v4l/v4l2: YES (linux/videodev2.h)
Parallel framework: pthreads
Trace: YES (with Intel ITT)
Other third-party libraries:
Lapack: YES (/usr/lib/arm-linux-gnueabihf/liblapack.so /usr/lib/arm-linux-gnueabihf/libcblas.so /usr/lib/arm-linux-gnueabihf/libatlas.so)
Eigen: YES (ver 3.3.7)
Custom HAL: NO
Protobuf: build (3.19.1)
OpenCL: YES (no extra features)
Include path: /tmp/pip-wheel-5v2wouk5/opencv-contrib-python_f04c010cf0414c5a81144576b45aa287/opencv/3rdparty/include/opencl/1.2
Link libraries: Dynamic load
Python 3:
Interpreter: /usr/bin/python3 (ver 3.7.3)
Libraries: /usr/lib/arm-linux-gnueabihf/libpython3.7m.so (ver 3.7.3)
numpy: /usr/local/lib/python3.7/dist-packages/numpy/core/include (ver 1.21.4)
install path: python/cv2/python-3
Python (for build): /usr/bin/python3
Java:
ant: NO
JNI: NO
Java wrappers: NO
Java tests: NO
Install to: /tmp/pip-wheel-5v2wouk5/opencv-contrib-python_f04c010cf0414c5a81144576b45aa287/_skbuild/linux-armv7l-3.7/cmake-install
-----------------------------------------------------------------