Build opencv with opencv_contrib for windows 10

MethodClone opencv_contrib

Enter following command to clone opencv_contrib in in /g/lib

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cd /g/lib
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git clone https://github.com/opencv/opencv_contrib

opencv and opencv_contrib should be in same folder.

if you enter following comand in git bash

cd /g/lib/

ls opencv*

results must be

You must not clone opencv_contrib inside opencv folder.

You must use same version of opencv and opencv_contrib : clone opencv and opencv_contrib same day.

MethodBuilding opencv and and opencv_contrib using a bash script

Save following script as buildocv.sh in /g/lib

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#!/bin/bash -e
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RepoSource=opencv
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if [  $# -eq 0 ]
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then
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    RepoBuild=opencv
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    RepoInstall=opencv
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else
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    RepoBuild=$1
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    RepoInstall=$1
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fi
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if [ ! -d Build/$RepoBuild ]; then
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  mkdir Build/$RepoBuild
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fi
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pushd Build/$RepoBuild
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CMAKE_OPTIONS='-DBUILD_opencv_world:BOOL=OFF -DBUILD_PERF_TESTS:BOOL=OFF -DBUILD_TESTS:BOOL=OFF -DBUILD_DOCS:BOOL=OFF -DWITH_CUDA:BOOL=OFF -DBUILD_EXAMPLES:BOOL=OFF -DBUILD_SHARED_LIBS:BOOL=OFF -DBUILD_WITH_STATIC_CRT:BOOL=ON'
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CMAKE_CONFIG_GENERATOR="Visual Studio 15 2017 Win64" 
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cmake -G"$CMAKE_CONFIG_GENERATOR" $CMAKE_OPTIONS \
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-DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules \
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-DCMAKE_INSTALL_PREFIX="$myRepo"/install/"$RepoInstall"  ../../"$RepoSource"
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echo "************************* $Source_DIR -->devenv debug"
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cmake --build . --config release 
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echo "************************* $Source_DIR -->devenv release"
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cmake --build .  --target install --config release 
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echo "************************* $Source_DIR -->devenv debug"
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cmake --build .  --config debug 
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echo "************************* $Source_DIR -->devenv release"
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cmake --build .  --target install --config debug 
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popd
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Enter following command in git bash to build opencv :
cd /g/lib
./buildocv.sh
opencv with opencv_contrib will be build and install /g/lib/install/opencv