Dockerfile

FROM ubuntu:18.04
# Image providing Jupyter notebook server with Python 3.6 bindings for OpenCV 3.4.5
# Based on https://www.pyimagesearch.com/2018/05/28/ubuntu-18-04-how-to-install-opencv/

LABEL maintainer="jgilewski@jagin.pl"

# Switch to root to be able to install stuff
USER root

# This will make apt-get install without question
ARG DEBIAN_FRONTEND=noninteractive

# Update package list, upgrade system and set default locale
RUN apt-get update  && \
    apt-get -y upgrade && \
    apt-get -y install apt-utils && \
    apt-get -y install locales && \
    locale-gen "en_US.UTF-8" && \
    dpkg-reconfigure --frontend=noninteractive locales
ENV LC_ALL=en_US.UTF-8
ENV LANG=en_US.UTF-8
ENV LANGUAGE=en_US:en

# Install python3.6
RUN apt-get -y install python3.6-dev python3.6 python3-pip && \
    pip3 install --upgrade pip && \
    update-alternatives --install /usr/bin/python python /usr/bin/python3.6 1

# Install packages required for compiling opencv
RUN apt-get -y install build-essential cmake unzip pkg-config wget

# Install packages providing support for several image formats like JPEG, PNG, TIFF
RUN apt-get -y install libjpeg-dev libpng-dev libtiff-dev

# Install packages providing support for several video formats
# so you can work with your camera stream and process video files
RUN apt-get -y install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev libxvidcore-dev libx264-dev

# Install gtk (GUI components in opencv rely on gtk)
# as OpenCV’s highgui relies on the GTK library for GUI operations
RUN apt-get -y install libgtk-3-dev

# Install additional packages optimizing opencv
RUN apt-get -y install libatlas-base-dev gfortran

# Define OpenCV version to download, compile and install
ENV OPENCV_VERSION=3.4.5

# Download and extract OpenCV sources
WORKDIR /root
RUN echo "Downloading OpenCV source..." && \
    wget -O opencv.tgz https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.tar.gz -nv && \
    wget -O opencv_contrib.tgz https://github.com/Itseez/opencv_contrib/archive/${OPENCV_VERSION}.tar.gz -nv && \
    echo "Extracting OpenCV sources..." && \
    tar xzf opencv.tgz && \
    tar xzf opencv_contrib.tgz

# numpy is required for OpenCV Python bindings
RUN pip install numpy

# Configure, compile, install, clean up
RUN mkdir opencv-${OPENCV_VERSION}/build && \
    cd opencv-${OPENCV_VERSION}/build && \
    cmake -D CMAKE_BUILD_TYPE=RELEASE \
        -D CMAKE_INSTALL_PREFIX=/usr/local \
        -D INSTALL_PYTHON_EXAMPLES=ON \
        -D INSTALL_C_EXAMPLES=OFF \
        -D OPENCV_ENABLE_NONFREE=ON \
        -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib-${OPENCV_VERSION}/modules \
        -D OPENCV_SKIP_PYTHON_LOADER=ON \
        -D PYTHON_EXECUTABLE=/usr/bin/python \
        -D BUILD_EXAMPLES=ON \
        -D BUILD_DOCS=OFF \
        -D BUILD_PERF_TESTS=OFF \
        -D BUILD_TESTS=OFF \
        .. && \
    make -j4 && \
    make install && \
    ldconfig && \
    rm -rf opencv*

# Copy Jupyter settings
COPY .jupyter .jupyter

# Install required python packages
RUN mkdir notebooks
ADD requirements.txt notebooks/requirements.txt
RUN pip install -r notebooks/requirements.txt

# Populate notebooks
COPY notebooks notebooks
WORKDIR /root/notebooks
ENV PYTHONPATH=/root/notebooks

# Run tests
RUN py.test tests/test_requirements.py

# Define entrypoint
ENTRYPOINT ["jupyter", "notebook"]

EXPOSE 8888