Install OpenCV in a Docker container

Question

I'm attempting to Dockerise a Python application, which depends on OpenCV. I've tried several different ways, but I keep getting... ImportError: No module named cv2 when I attempt to run the application.

Here's my current Dockerfile.

FROM python:2.7

MAINTAINER Ewan Valentine <[e-mail]>

RUN mkdir -p /usr/src/app 
WORKDIR /usr/src/app 

# Various Python and C/build deps
RUN apt-get update && apt-get install -y \ 
    wget \
    build-essential \ 
    cmake \ 
    git \
    pkg-config \
    python-dev \ 
    python-opencv \ 
    libopencv-dev \ 
    libav-tools  \ 
    libjpeg-dev \ 
    libpng-dev \ 
    libtiff-dev \ 
    libjasper-dev \ 
    libgtk2.0-dev \ 
    python-numpy \ 
    python-pycurl \ 
    libatlas-base-dev \
    gfortran \
    webp \ 
    python-opencv 

# Install Open CV - Warning, this takes absolutely forever
RUN cd ~ && git clone https://github.com/Itseez/opencv.git && \ 
    cd opencv && \
    git checkout 3.0.0 && \
    cd ~ && git clone https://github.com/Itseez/opencv_contrib.git && \
    cd opencv_contrib && \
    git checkout 3.0.0 && \
    cd ~/opencv && mkdir -p build && cd build && \
    cmake -D CMAKE_BUILD_TYPE=RELEASE \
    -D CMAKE_INSTALL_PREFIX=/usr/local \ 
    -D INSTALL_C_EXAMPLES=ON \ 
    -D INSTALL_PYTHON_EXAMPLES=ON \ 
    -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules \ 
    -D BUILD_EXAMPLES=OFF .. && \
    make -j4 && \
    make install && \ 
    ldconfig

COPY requirements.txt /usr/src/app/
RUN pip install --no-cache-dir -r requirements.txt

COPY . /usr/src/app 

And my requirements.txt file

Flask==0.8
gunicorn==0.14.2
requests==0.11.1
bs4==0.0.1
nltk==3.2.1
pymysql==0.7.2
xlsxwriter==0.8.5
numpy==1.11
Pillow==3.2.0
cv2==1.0
pytesseract==0.1

Answer 1

Fixed with a slightly different set-up

FROM python:2.7

MAINTAINER Ewan Valentine <[e-mail]>

RUN mkdir -p /usr/src/app 
WORKDIR /usr/src/app 

# Various Python and C/build deps
RUN apt-get update && apt-get install -y \ 
    wget \
    build-essential \ 
    cmake \ 
    git \
    unzip \ 
    pkg-config \
    python-dev \ 
    python-opencv \ 
    libopencv-dev \ 
    libav-tools  \ 
    libjpeg-dev \ 
    libpng-dev \ 
    libtiff-dev \ 
    libjasper-dev \ 
    libgtk2.0-dev \ 
    python-numpy \ 
    python-pycurl \ 
    libatlas-base-dev \
    gfortran \
    webp \ 
    python-opencv \ 
    qt5-default \
    libvtk6-dev \ 
    zlib1g-dev 

# Install Open CV - Warning, this takes absolutely forever
RUN mkdir -p ~/opencv cd ~/opencv && \
    wget https://github.com/Itseez/opencv/archive/3.0.0.zip && \
    unzip 3.0.0.zip && \
    rm 3.0.0.zip && \
    mv opencv-3.0.0 OpenCV && \
    cd OpenCV && \
    mkdir build && \ 
    cd build && \
    cmake \
    -DWITH_QT=ON \ 
    -DWITH_OPENGL=ON \ 
    -DFORCE_VTK=ON \
    -DWITH_TBB=ON \
    -DWITH_GDAL=ON \
    -DWITH_XINE=ON \
    -DBUILD_EXAMPLES=ON .. && \
    make -j4 && \
    make install && \ 
    ldconfig

COPY requirements.txt /usr/src/app/
RUN pip install --no-cache-dir -r requirements.txt

COPY . /usr/src/app 

Answer 2

Here's an image that is built on Ubuntu 16.04 with Python2 + Python3 + OpenCV. You can pull it using docker pull chennavarri/ubuntu_opencv_python

Here's the Dockerfile (provided in the same dockerhub repo mentioned above) that will install opencv for both python2 and python3 on Ubuntu 16.04 and also sets the appropriate raw1394 link. Copied from https://github.com/chennavarri/docker-ubuntu-python-opencv

FROM ubuntu:16.04
MAINTAINER Chenna Varri

RUN apt-get update
RUN apt-get install -y build-essential apt-utils

RUN apt-get install -y cmake git libgtk2.0-dev pkg-config libavcodec-dev \
  libavformat-dev libswscale-dev
RUN  apt-get update && apt-get install -y python-dev python-numpy \
  python3 python3-pip python3-dev libtbb2 libtbb-dev \
  libjpeg-dev libjasper-dev libdc1394-22-dev \
  python-opencv libopencv-dev libav-tools python-pycurl \
  libatlas-base-dev gfortran webp qt5-default libvtk6-dev zlib1g-dev

RUN pip3 install numpy

RUN apt-get install -y python-pip
RUN pip install --upgrade pip

RUN cd ~/ &&\
    git clone https://github.com/Itseez/opencv.git &&\
    git clone https://github.com/Itseez/opencv_contrib.git &&\
    cd opencv && mkdir build && cd build && cmake  -DWITH_QT=ON -DWITH_OPENGL=ON -DFORCE_VTK=ON -DWITH_TBB=ON -DWITH_GDAL=ON -DWITH_XINE=ON -DBUILD_EXAMPLES=ON .. && \
    make -j4 && make install && ldconfig

# Set the appropriate link
RUN ln /dev/null /dev/raw1394

RUN cd ~/opencv

Some additional instructions for people newly starting with Docker:

• In the directory where you put this Dockerfile, build the docker image as docker build -t ubuntu_cv .

• Once the image is built, you can check by doing docker images

  REPOSITORY   TAG       IMAGE ID      CREATED             SIZE
  
  ubuntu_cv  latest    6210ffffd6346b   24 minutes ago      2.192 GB
  

• You can start a docker container as docker run -t -i ubuntu_cv:latest

Answer 3

Thanks for posting this. I ran into the same issue and tried your solution and although it seemed to install OpenCV it left me with an issue of conflicting versions of the Python six library so I took a different route. I think a simpler way to do this is to install Anaconda in your container and then add OpenCV. I'm using Python 2 so my entire Dockerfile to get OpenCvv installed is just:

FROM continuumio/anaconda
EXPOSE 5000

ADD . /code-directory
WORKDIR code-directory
RUN conda install opencv

CMD ["python", "run-code.py"]

This will install Anaconda from the continuumio/anaconda Dockerfile and then it will use Anaconda to install opencv. There is a seperate continuumio Dockerfile for Python 3 if you need that as well.

Answer 4

from    ubuntu:12.10

# Ubuntu sides with libav, I side with ffmpeg.
run echo "deb http://ppa.launchpad.net/jon-severinsson/ffmpeg/ubuntu quantal main" >> /etc/apt/sources.list
run apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 1DB8ADC1CFCA9579


run apt-get update
run apt-get install -y -q wget curl
run apt-get install -y -q build-essential
run apt-get install -y -q cmake
run apt-get install -y -q python2.7 python2.7-dev
run wget 'https://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg' && /bin/sh setuptools-0.6c11-py2.7.egg && rm -f setuptools-0.6c11-py2.7.egg
run curl 'https://raw.github.com/pypa/pip/master/contrib/get-pip.py' | python2.7
run pip install numpy
run apt-get install -y -q libavformat-dev libavcodec-dev libavfilter-dev libswscale-dev
run apt-get install -y -q libjpeg-dev libpng-dev libtiff-dev libjasper-dev zlib1g-dev libopenexr-dev libxine-dev libeigen3-dev libtbb-dev
add build_opencv.sh /build_opencv.sh
run /bin/sh /build_opencv.sh
run rm -rf /build_opencv.sh