{{tag>Compilation Debian Paquet}}

= Compilation OpenCV sur Debian

Voir aussi : 
* **skimage** est une alternative à **OpenCV**
* YOLO (Python)

Compilation et installation d'OpenCV 3.3.0 sous Debian 9

Prérequis 
<code bash>
sudo apt-get update
sudo apt-get install -y build-essential
sudo apt-get install -y cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
sudo apt-get install -y python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev  libdc1394-22-dev
sudo apt-get -y install unzip

# Pour la création du .deb
sudo apt-get install -y fakeroot checkinstall
</code>

Téléchargement des sources
<code bash>
mkdir ~/src
cd ~/src
wget https://github.com/opencv/opencv/archive/3.3.0.zip
unzip 3.3.0.zip
</code>

Pas nécessaire si ''-DWITH_IPP=OFF'' on option de compilation
<code bash>
mkdir -p ~/src/opencv-3.3.0/3rdparty/ippicv/downloads/linux-8b449a536a2157bcad08a2b9f266828b/
cd !$
export https_proxy=http://192.168.56.1:3128
wget https://sourceforge.net/projects/opencvlibrary/files/3rdparty/ippicv/ippicv_linux_20141027.tgz
</code>

Compilation
<code bash>
cd ~/src/opencv-3.3.0/cmake
#cmake -DWITH_CUDA=OFF -DWITH_QT=OFF -DWITH_OPENGL=OFF -DFORCE_VTK=ON -DWITH_TBB=ON -DWITH_GDAL=ON -DWITH_XINE=ON -DBUILD_EXAMPLES=ON -DENABLE_PRECOMPILED_HEADERS=OFF ..

#cmake -DCMAKE_INSTALL_PREFIX=/usr/lib/opencv3.0 -DWITH_FFMPEG=OFF -DWITH_IPP=OFF -DWITH_CUDA=OFF -DWITH_QT=OFF -DWITH_OPENGL=OFF -DFORCE_VTK=ON -DWITH_TBB=ON -DWITH_GDAL=ON -DWITH_XINE=ON -DBUILD_EXAMPLES=ON -DENABLE_PRECOMPILED_HEADERS=OFF ..

cmake  -DBUILD_TIFF=ON \
       -DBUILD_opencv_java=OFF \
       -DBUILD_SHARED_LIBS=ON \
       -DBUILD_EXAMPLES=OFF \
       -DBUILD_TESTS=OFF \
       -DBUILD_PERF_TESTS=OFF \
       -DWITH_CUDA=ON \
       -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-8.0 \
       -DCUDA_ARCH_BIN='3.0 3.5 5.0 6.0 6.2' \
       -DCUDA_ARCH_PTX="" \
       -DCPU_DISPATCH=AVX,AVX2 \
       -DENABLE_PRECOMPILED_HEADERS=OFF \
       -DWITH_OPENGL=OFF \
       -DWITH_OPENCL=OFF \
       -DWITH_QT=OFF \
       -DWITH_IPP=ON \
       -DWITH_TBB=ON \
       -DFORCE_VTK=ON \
       -DWITH_EIGEN=ON \
       -DWITH_V4L=ON \
       -DWITH_XINE=ON \
       -DWITH_GDAL=ON \
       -DWITH_1394=OFF \
       -DWITH_FFMPEG=OFF \
       -DBUILD_PROTOBUF=OFF \
       -DCMAKE_BUILD_TYPE=RELEASE \
       -DCMAKE_INSTALL_PREFIX=/usr/lib/opencv3.3 \
	..

make -j $(nproc)
</code>

Installation
<code bash>
sudo make install
</code>

== Création d'un paquet Debian avec checkinstall

<code bash>
cat >description-pak <<EOF
libopencv
This package contains the header files and static library needed to compile
applications that use OpenCV (Open Computer Vision) core.
.
The Open Computer Vision Library is a collection of algorithms and sample
code for various computer vision problems. The library is compatible with
IPL (Intel's Image Processing Library) and, if available, can use IPP
(Intel's Integrated Performance Primitives) for better performance.
.
OpenCV provides low level portable data types and operators, and a set
of high level functionalities for video acquisition, image processing and
analysis, structural analysis, motion analysis and object tracking, object
recognition, camera calibration and 3D reconstruction.
EOF

echo |fakeroot checkinstall --install=no \
 --strip \
 --stripso \
 --addso \
 --exclude '/home' \
 --gzman \
 --reset-uids \
 --maintainer 'ACME SAS \<[mailto:root@acme.fr\>]root@acme.fr\>' \
 --pkglicense 'Copyright' \
 --pkgname opencv-all3.3 \
 --pkgrelease 1 \
 --pkgversion 3.3.0 \
 --pkgsource 'https://github.com/opencv/opencv/archive/3.3.0.zip'
</code>

TODO : ldconfig

Exemple 
<code - DEBIAN/shlibs>
libcudnn 7 libcudnn7
</code>

Voir http://man7.org/linux/man-pages/man5/deb-shlibs.5.html

<code - DEBIAN/triggers>
# Triggers added by dh_makeshlibs/11.1.6ubuntu2
activate-noawait ldconfig
</code>
Voir : https://manpages.debian.org/unstable/dpkg-dev/deb-triggers.5.fr.html