Face mask detection on a Jetson Nano
Home Page: https://qengineering.eu/deep-learning-examples-on-raspberry-32-64-os.html
License: BSD 3-Clause "New" or "Revised" License
I compiled opencv with cuda support but while python3 is showing opencv version as 3.3.1,
JTOP is showing opencv as
Opencv : 4.1.2 compiled CUDA : YES
Any explanation as to what could be happening ? I was able to run the mask detection with average FPS of 25 for single face on webcam. But just puzzled about mismatch between jtop and python's opencv verions.
I was wondering if building opencv with
enable_fast_math=1
cuda_fast_math-1
would have any beneficial impact wrt speed ?
I compiled opencv with cuda support but while python3 is showing opencv version as 4.9.0,
JTOP is showing opencv as
Opencv : 4.5.4 compiled CUDA : NO
How can I change opencv version of JTOP to 4.9.0?
Hi,
Im getting lots of undefined errors while building this :-
g++ -Wall -fexceptions -pthread -O3 -I/usr/include/opencv4 -I/usr/local/include/paddle-lite -I/usr/local/include/ncnn -c /home/ns/Face-Mask-Detection-Jetson-Nano/mask_ultra.cpp -o obj/Release/mask_ultra.o
...........
g++ -L/usr/local/lib/ -L/usr/lib/ -o bin/Release/MaskUltra obj/Release/mask_ultra.o obj/Release/UltraFace.o -pthread -fopenmp -s /usr/local/lib/paddle-lite/libpaddle_api_light_bundled.a /usr/local/lib/ncnn/libncnn.a /usr/lib/aarch64-linux-gnu/libvulkan.so /usr/local/lib/ncnn/libglslang.a /usr/local/lib/ncnn/libOGLCompiler.a /usr/local/lib/ncnn/libOSDependent.a /usr/local/lib/ncnn/libSPIRV.a
obj/Release/mask_ultra.o: In function `cv::Mat::~Mat()':
mask_ultra.cpp:(.text._ZN2cv3MatD2Ev[_ZN2cv3MatD5Ev]+0x84): undefined reference to `cv::fastFree(void*)'
mask_ultra.cpp:(.text._ZN2cv3MatD2Ev[_ZN2cv3MatD5Ev]+0x94): undefined reference to `cv::Mat::deallocate()'
obj/Release/mask_ultra.o: In function `main':
mask_ultra.cpp:(.text.startup+0x10b8): undefined reference to `cv::String::allocate(unsigned long)'
mask_ultra.cpp:(.text.startup+0x10e8): undefined reference to `cv::VideoCapture::VideoCapture(cv::String const&)'
mask_ultra.cpp:(.text.startup+0x10f0): undefined reference to `cv::String::deallocate()'
mask_ultra.cpp:(.text.startup+0x10f8): undefined reference to `cv::VideoCapture::isOpened() const'
mask_ultra.cpp:(.text.startup+0x1128): undefined reference to `cv::VideoCapture::~VideoCapture()'
mask_ultra.cpp:(.text.startup+0x1200): undefined reference to `cv::VideoCapture::operator>>(cv::Mat&)'
mask_ultra.cpp:(.text.startup+0x1274): undefined reference to `cv::destroyAllWindows()'
mask_ultra.cpp:(.text.startup+0x1494): undefined reference to `cv::fastFree(void*)'
mask_ultra.cpp:(.text.startup+0x15ac): undefined reference to `cv::format(char const*, ...)'
mask_ultra.cpp:(.text.startup+0x15fc): undefined reference to `cv::putText(cv::_InputOutputArray const&, cv::String const&, cv::Point_<int>, int, double, cv::Scalar_<double>, int, int, bool)'
mask_ultra.cpp:(.text.startup+0x1604): undefined reference to `cv::String::deallocate()'
mask_ultra.cpp:(.text.startup+0x1614): undefined reference to `cv::String::allocate(unsigned long)'
mask_ultra.cpp:(.text.startup+0x1658): undefined reference to `cv::imshow(cv::String const&, cv::_InputArray const&)'
mask_ultra.cpp:(.text.startup+0x1660): undefined reference to `cv::String::deallocate()'
mask_ultra.cpp:(.text.startup+0x1668): undefined reference to `cv::waitKey(int)'
mask_ultra.cpp:(.text.startup+0x16cc): undefined reference to `cv::Mat::Mat(cv::Mat const&, cv::Rect_<int> const&)'
mask_ultra.cpp:(.text.startup+0x1714): undefined reference to `cv::resize(cv::_InputArray const&, cv::_OutputArray const&, cv::Size_<int>, double, double, int)'
mask_ultra.cpp:(.text.startup+0x1744): undefined reference to `cv::Mat::convertTo(cv::_OutputArray const&, int, double, double) const'
mask_ultra.cpp:(.text.startup+0x1800): undefined reference to `cv::rectangle(cv::Mat&, cv::Rect_<int>, cv::Scalar_<double> const&, int, int, int)'
mask_ultra.cpp:(.text.startup+0x1874): undefined reference to `cv::fastFree(void*)'
mask_ultra.cpp:(.text.startup+0x18e8): undefined reference to `cv::fastFree(void*)'
mask_ultra.cpp:(.text.startup+0x1904): undefined reference to `cv::Mat::deallocate()'
mask_ultra.cpp:(.text.startup+0x1910): undefined reference to `cv::Mat::deallocate()'
mask_ultra.cpp:(.text.startup+0x1998): undefined reference to `cv::Mat::deallocate()'
mask_ultra.cpp:(.text.startup+0x19f4): undefined reference to `cv::String::deallocate()'
mask_ultra.cpp:(.text.startup+0x1a10): undefined reference to `cv::VideoCapture::~VideoCapture()'
mask_ultra.cpp:(.text.startup+0x1a98): undefined reference to `cv::String::deallocate()'
mask_ultra.cpp:(.text.startup+0x1ac0): undefined reference to `cv::String::deallocate()'
collect2: error: ld returned 1 exit status
Process terminated with status 1 (0 minute(s), 11 second(s))
31 error(s), 2 warning(s) (0 minute(s), 11 second(s))
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