dockerfile安装opencv

可以通过以下Dockerfile安装OpenCV：

FROM python:3.8-slim-buster

RUN apt-get update && apt-get install -y \
    build-essential \
    cmake \
    libgtk2.0-dev \
    pkg-config \
    libavcodec-dev \
    libavformat-dev \
    libswscale-dev \
    python3-dev \
    libtbb2 \
    libtbb-dev \
    libjpeg-dev \
    libpng-dev \
    libtiff-dev \
    libdc1394-22-dev

RUN pip install opencv-python

CMD ["/bin/bash"]

上述Dockerfile中，我们首先基于Python3.8的镜像构建Docker镜像，在Docker镜像中安装OpenCV所需的依赖项，然后通过pip安装OpenCV。