在 Docker 容器中安装 OpenCV

Question

我正在尝试 Dockerise 一个依赖于 OpenCV 的 Python 应用程序。我尝试了几种不同的方法，但是当我尝试运行应用程序时，我不断得到… ImportError: No module named cv2 。

这是我当前的 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

还有我的 requirements.txt 文件

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

原文由 Ewan Valentine 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

修复了稍微不同的设置

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/opencv/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

原文由 Ewan Valentine 发布，翻译遵循 CC BY-SA 4.0 许可协议