Updates ofxOpenCv to current OpenCV version from homebrew. The compiled homebrew version includes more modules (e.g. DNN) and is more up-to-date.

update_ofxopencv.sh

#!/usr/bin/env bash  
# Author:   Gilbert Francois Duivesteijn
# Date:     Aug 2018
# Updated:  Jan 2019
# Version:  1.3
# Platform: macOS
# License:  Apache
# 
# Tested for OpenCV 3.4.5
# 
# Updates ofxOpenCv to more recent OpenCV version.

# Download and extract:
#    opencv-[version].tar.gz         to /tmp/opencv-[version]
#    opencv_contrib-[version].tar.gz to /tmp/opencv_contrib-[version]
# then run this script. The package will be installed temporarely in /tmp/opencv. If you like it 
# to be installed somewhere else, change the INSTALL_PREFIX parameter.

### BEGIN USER SETTINGS
#

# Set your openframeworks folder locations here...
OPENFRAMEWORKS_DIR=${HOME}/Development/git/of_v0.10.1_osx_release

# Set your opencv source folders here...
OPENCV_SRC=/tmp/opencv-3.4.5
OPENCV_CONTRIB_SRC=/tmp/opencv_contrib-3.4.5/modules

INSTALL_PREFIX=/tmp/opencv
OSX_MIN_SDK_VER=10.9
#
### END USER SETTINGS

## SETTINGS
OPENCV_BUILD=${OPENCV_SRC}/build

## Clean build and target folders
rm -Rf ${OPENCV_BUILD}
mkdir ${OPENCV_BUILD}
rm -Rf ${INSTALL_PREFIX}
mkdir ${INSTALL_PREFIX}

## Start build
cd ${OPENCV_BUILD}

echo "[.] Running cmake"
echo "--------------------"

cmake -D CMAKE_INSTALL_PREFIX=${INSTALL_PREFIX} \
    -D CMAKE_OSX_DEPLOYMENT_TARGET=10.9 \
    -D ENABLE_FAST_MATH=OFF \
    -D CMAKE_CXX_FLAGS="-fvisibility-inlines-hidden -stdlib=libc++ -O3 -fPIC -arch x86_64 -mmacosx-version-min=${OSX_MIN_SDK_VER}" \
    -D CMAKE_C_FLAGS="-fvisibility-inlines-hidden -stdlib=libc++ -O3 -fPIC -arch x86_64 -mmacosx-version-min=${OSX_MIN_SDK_VER}" \
    -D CMAKE_BUILD_TYPE="Release" \
    -D BUILD_SHARED_LIBS=OFF \
    -D OPENCV_EXTRA_MODULES_PATH:PATH=${OPENCV_CONTRIB_SRC} \
    -D OPENCV_ENABLE_NONFREE:BOOL="1" \
    -D BUILD_DOCS=OFF \
    -D BUILD_EXAMPLES=OFF \
    -D BUILD_FAT_JAVA_LIB=OFF \
    -D BUILD_JASPER=OFF \
    -D BUILD_PACKAGE=OFF \
    -D BUILD_opencv_java=OFF \
    -D BUILD_opencv_python=OFF \
    -D BUILD_opencv_apps=OFF \
    -D BUILD_opencv_videoio=OFF \
    -D BUILD_JPEG=OFF \
    -D BUILD_PNG=OFF \
    -D WITH_1394=OFF \
    -D WITH_CARBON=OFF \
    -D WITH_JPEG=OFF \
    -D old-jpeg:BOOL="1" \
    -D WITH_PNG=OFF \
    -D WITH_FFMPEG=OFF \
    -D WITH_OPENCL=OFF \
    -D WITH_OPENCLAMDBLAS=OFF \
    -D WITH_OPENCLAMDFFT=OFF \
    -D WITH_GIGEAPI=OFF \
    -D WITH_CUDA=OFF \
    -D WITH_CUFFT=OFF \
    -D WITH_JASPER=OFF \
    -D WITH_LIBV4L=OFF \
    -D WITH_IMAGEIO=OFF \
    -D WITH_IPP=OFF \
    -D WITH_OPENNI=OFF \
    -D WITH_QT=OFF \
    -D WITH_QUICKTIME=OFF \
    -D WITH_V4L=OFF \
    -D WITH_PVAPI=OFF \
    -D WITH_OPENEXR=OFF \
    -D WITH_EIGEN=OFF \
    -D BUILD_TESTS=OFF \
    -D WITH_VTK=OFF \
    -D BUILD_PERF_TESTS=OFF \
    ..

echo "[.] Running make"
echo "--------------------"

make clean
make -j8

echo "[.] Running make install"
echo "--------------------"

make install
cp 3rdparty/lib/*.a ${INSTALL_PREFIX}/lib


# OpenCV folder (for brew installations, it is in /usr/local/opt/opencv)
OPENCV_DIR=${INSTALL_PREFIX}

# Temporary build location
BUILD_DIR="/tmp/ofxOpenCV-build"

echo "[.] Creating temporary build folder..."
mkdir -pv $BUILD_DIR
mkdir -pv $BUILD_DIR/lib

echo "[.] Copying headers and libraries..."
cp -R ${INSTALL_PREFIX}/include $BUILD_DIR
cp -R ${INSTALL_PREFIX}/lib/*.a $BUILD_DIR/lib/

echo "[.] Building single static library file..."
outputlist=$BUILD_DIR/lib/lib*.a
libtool -static $outputlist -o $BUILD_DIR/lib/opencv.a
ls -lh $BUILD_DIR/lib/opencv.a

echo "[.] Removing old library and headers in ofxOpenCv..."
rm -Rf $OPENFRAMEWORKS_DIR/addons/ofxOpenCv/libs/opencv/include
rm -Rf $OPENFRAMEWORKS_DIR/addons/ofxOpenCv/libs/opencv/lib/osx/*

echo "[.] Copying new library and headers in ofxOpenCv..."
cp -R $BUILD_DIR/include $OPENFRAMEWORKS_DIR/addons/ofxOpenCv/libs/opencv/include
cp -R $BUILD_DIR/lib/opencv.a $OPENFRAMEWORKS_DIR/addons/ofxOpenCv/libs/opencv/lib/osx/

echo "[.] Cleaning up..."
rm -Rf $BUILD_DIR/lib
rm -Rf $BUILD_DIR/include

echo "[.] Done!"