Win 10 + VS 2019 +opencv_contrib-3.4.7編譯

1.下載opencv3.4.7 解壓  https://opencv.org/releases/ 2.下載對應的擴展包opencv-contrib-3.4.7  解壓   https://github.com/opencv/opencv_contrib/releases 3.下載cmake  https://cmake.org/download/   並安裝Cmake 以上準備好之後繼續： 4.打

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