Ubuntu 16.04安装opencv 3.4.8

1、下载opencv 安装包opencv 和opencv_contrib https://codeload.github.com/opencv/opencv_contrib/zip/3.4.8 https://codeload.github.com/opencv/opencv/zip/3.4.8 2、解压两个压缩包，并且把opencv_contrib移到opencv中 并在opencv中新建bui

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