Dockerfile.opencv-ubuntu-20.04

# to build this docker image:
#   docker build -f Dockerfile.opencv-ubuntu-20.04 -t ghcr.io/hybridgroup/opencv:4.10.0-ubuntu-20.04 .
#   docker build --build-arg OPENCV_VERSION="4.x" --build-arg OPENCV_FILE="https://github.com/opencv/opencv/archive/refs/heads/4.x.zip" --build-arg OPENCV_CONTRIB_FILE="https://github.com/opencv/opencv_contrib/archive/refs/heads/4.x.zip" -f Dockerfile.opencv-ubuntu-20.04 -t ghcr.io/hybridgroup/opencv:4.10.0-dev-ubuntu-20.04 .
FROM ubuntu:20.04 AS opencv-base
LABEL maintainer="hybridgroup"

ENV TZ=Europe/Madrid
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

RUN apt-get update && apt-get install -y --no-install-recommends \
      tzdata git build-essential cmake pkg-config wget unzip libgtk2.0-dev \
      curl ca-certificates libcurl4-openssl-dev libssl-dev \
      libavcodec-dev libavformat-dev libswscale-dev libtbb2 libtbb-dev \
      libharfbuzz-dev libfreetype6-dev \
      libjpeg-turbo8-dev libpng-dev libtiff-dev libdc1394-22-dev nasm && \
      rm -rf /var/lib/apt/lists/*

ARG OPENCV_VERSION="4.10.0"
ENV OPENCV_VERSION $OPENCV_VERSION

ARG OPENCV_FILE="https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.zip"
ENV OPENCV_FILE $OPENCV_FILE

ARG OPENCV_CONTRIB_FILE="https://github.com/opencv/opencv_contrib/archive/${OPENCV_VERSION}.zip"
ENV OPENCV_CONTRIB_FILE $OPENCV_CONTRIB_FILE

RUN curl -Lo opencv.zip ${OPENCV_FILE} && \
      unzip -q opencv.zip && \
      curl -Lo opencv_contrib.zip ${OPENCV_CONTRIB_FILE} && \
      unzip -q opencv_contrib.zip && \
      rm opencv.zip opencv_contrib.zip && \
      cd opencv-${OPENCV_VERSION} && \
      mkdir build && cd build && \
      cmake -D CMAKE_BUILD_TYPE=RELEASE \
      -D WITH_IPP=OFF \
      -D WITH_OPENGL=OFF \
      -D WITH_QT=OFF \
      -D WITH_FREETYPE=ON \
      -D CMAKE_INSTALL_PREFIX=/usr/local \
      -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-${OPENCV_VERSION}/modules \
      -D OPENCV_ENABLE_NONFREE=ON \
      -D WITH_JASPER=OFF \
      -D WITH_TBB=ON \
      -D BUILD_JPEG=ON \
      -D WITH_SIMD=ON \
      -D ENABLE_LIBJPEG_TURBO_SIMD=ON \
      -D BUILD_DOCS=OFF \
      -D BUILD_EXAMPLES=OFF \
      -D BUILD_TESTS=OFF \
      -D BUILD_PERF_TESTS=ON \
      -D BUILD_opencv_java=NO \
      -D BUILD_opencv_python=NO \
      -D BUILD_opencv_python2=NO \
      -D BUILD_opencv_python3=NO \
      -D OPENCV_GENERATE_PKGCONFIG=ON .. && \
      make -j $(nproc --all) && \
      make preinstall && make install && ldconfig && \
      cd / && rm -rf opencv*

CMD ["opencv_version", "-b"]