安装 OpenCv 和 OpenCv_Contrib
git clone https://github.com/opencv/opencv.git
git clone https://github.com/opencv/opencv_contrib.git
将opencv_contrib目录移到opencv目录下
添加opencv所需要的依赖库:
GCC 4.4.x or later
- List item
- CMake 2.8.7 or higher
- Git
- GTK+2.x or higher, including headers (libgtk2.0-dev)
- pkg-config
- Python 2.6 or later and Numpy 1.5 or later with developer packages
(python-dev, python-numpy) - ffmpeg or libav development packages: libavcodec-dev,
libavformat-dev, libswscale-dev - [optional] libtbb2 libtbb-dev
- [optional] libdc1394 2.x
- [optional] libjpeg-dev, libpng-dev, libtiff-dev, libjasper-dev,
libdc1394-22-dev - [optional] CUDA Toolkit 6.5 or higher
[compiler] sudo apt-get install build-essential
[required] sudo apt-get install cmake git

在Ubuntu 18.04上安装OpenCv和OpenCv_Contrib后,遇到运行OpenCvSharp时的异常。异常表现为无法创建VideoCapture,类型初始化异常,及无法加载共享库‘OpenCvSharpExtern’。解决方案是设置LD_LIBRARY_PATH环境变量为'/lib:/usr/lib:/usr/local/lib'并重启系统。
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