在編譯stitching模塊時會提示找不到cuda.hpp即matchers.hpp:52:42: fatal error: opencv2/xfeatures2d/cuda.hpp: No such file or directory
解決方法是在opencv/modules/stitching/CMakeLists.txt文件中加入一條語句使其include opencv_contrib/modules/xfeatures2d/include,可以是絕對路徑,如
INCLUDE_DIRECTORIES("/home/spring/Soft/opencv3.4.2/opencv_contrib/modules/xfeatures2d/include"
編譯時有很多文件會下載超時,畢竟是去github上去下載的,網速很慢,建議用cmake-gui
比如像這種文件,以及還有ippicv_2019_lnx_intel64_general_20180723.tgz 和face_landmark_model.dat等等。
error while loading shared libraries: libopencv_xfeatures2d.so.3.4: cannot open shared object file
找到libopencv_開頭到庫的目錄,在/usr/local/lib下面,在/etc/ld.so.conf.d/下面新建一個opencv.conf(可能已經存在),
里面寫入/usr/local/lib,
最后執行下sudo ldconfig -v 即可