test.cpp:(.text+0xc0): undefined reference to `cv::imread(std::string const&, int)'

2024-10-16 06:09:20

opencv报错:

test.cpp:(.text+0xc0): undefined reference to `cv::imread(std::string const&, int)'
test.cpp:(.text+0x11f): undefined reference to `cv::_OutputArray::_OutputArray(cv::Mat&)'

This is a linker
issue. Try:

g++ -o test_1
test_1.cpp ` pkg-config opencv --cflags --libs`

after compiling
libraries from source, you need to do finally:

sudo ldconfig

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