[설치] opencv 설치

아래 순서로 진행

sudo apt update
sudo apt upgrade
sudo apt install build-essential cmake git pkg-config
sudo apt install libjpeg-dev libtiff-dev libpng-dev
sudo apt install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
sudo apt install libxvidcore-dev libx264-dev
sudo apt install libgtk-3-dev
sudo apt install libatlas-base-dev gfortran
sudo apt install python3-dev
sudo apt install libblas-dev libopenblas-dev

mkdir opencv && cd opencv
git clone https://github.com/opencv/opencv.git
git clone https://github.com/opencv/opencv_contrib.git
cd opencv && git checkout <desired_ver>
cd ..
cd opencv_contrib && git checkout <desired_ver>
cd ..

cd opencv && mkdir build && cd build

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=OFF -D WITH_IPP=OFF -D WITH_1394=OFF -D BUILD_WITH_DEBUG_INFO=OFF -D BUILD_DOCS=OFF -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D WITH_QT=OFF -D WITH_GTK=ON -D WITH_OPENGL=ON -D OPENCV_EXTRA_MODULES_PATH=../OpenCV_contrib/modules -D WITH_V4L=ON  -D WITH_FFMPEG=ON -D WITH_XINE=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D OPENCV_GENERATE_PKGCONFIG=ON -D WITH_CUDA=OFF  -DLAPACKE_INCLUDE_DIR=/usr/include/lapacke ..
make -j
sudo make install
sudo ldconfig

에러 발생한 것들

1

CMakeLists.txt에
set(CMAKE_CXX_STANDARD 11) 추가

2

opencv_lapack.h에서
#include "/usr/include/eigen3/Eigen/src/misc/lapacke.h" include path 정확하게 섧정

descriptor.cpp에서

CV_Assert(image.size > 0);
CV_Assert(cost.size > 0);

를

CV_Assert(image.cols > 0 && image.rows >0);
CV_Assert(cost.cols > 0 && cost.rows >0);

로 바꾸기

sudo apt-get install liblapack-dev liblapacke-dev

로 lapack install하기

3

/usr/bin/ld: ../../lib/libopencv_core.so.3.2.0: undefined reference to `cblas_zgemm(CBLAS_ORDER, CBLAS_TRANSPOSE, CBLAS_TRANSPOSE, int, int, int, void const*, void const*, int, void const*, int, void const*, void*, int)'
/usr/bin/ld: ../../lib/libopencv_core.so.3.2.0: undefined reference to `cblas_dgemm(CBLAS_ORDER, CBLAS_TRANSPOSE, CBLAS_TRANSPOSE, int, int, int, double, double const*, int, double const*, int, double, double*, int)'
/usr/bin/ld: ../../lib/libopencv_core.so.3.2.0: undefined reference to `cblas_sgemm(CBLAS_ORDER, CBLAS_TRANSPOSE, CBLAS_TRANSPOSE, int, int, int, float, float const*, int, float const*, int, float, float*, int)'
/usr/bin/ld: ../../lib/libopencv_core.so.3.2.0: undefined reference to `cblas_cgemm(CBLAS_ORDER, CBLAS_TRANSPOSE, CBLAS_TRANSPOSE, int, int, int, void const*, void const*, int, void const*, int, void const*, void*, int)'
collect2: error: ld returned 1 exit status

sudo apt update
sudo apt install libblas-dev
sudo apt install libopenblas-dev

4 필수 의존 패키지 누락

도커 환경에서 에러 발생

python3-dev python3-numpy python3-pip libjasper-dev liblapacke-dev libeigen3-dev libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev

5 cmake 경로 오류

cmake 명령어 수정

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=OFF -D WITH_IPP=OFF -D WITH_1394=OFF -D BUILD_WITH_DEBUG_INFO=OFF -D BUILD_DOCS=OFF -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D WITH_QT=OFF -D WITH_GTK=ON -D WITH_OPENGL=ON -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules -D WITH_V4L=ON  -D WITH_FFMPEG=ON -D WITH_XINE=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D OPENCV_GENERATE_PKGCONFIG=ON -D WITH_CUDA=OFF  -DLAPACKE_INCLUDE_DIR=/usr/include/lapacke ..