问题描述
我正在尝试使用已构建并安装了gflags，然后是glog和ceres-solver的sfm模块来构建opencv.但make日志显示:模块opencv_sfm已禁用，因为未找到以下依赖项:Glog/Gflags .即使在较早的几行中，它也说可以找到这些目录.
I am trying to build opencv with sfm modules I've built and installed gflags then glog and the ceres-solver. Yet the make logs says: Module opencv_sfm disabled because the following dependencies are not found: Glog/Gflags. Even though in earlier lines it says it finds both to these directories.
我也已经构建并安装了VTK，尽管由于某些原因，即使我手动选择构建目录也找不到它.
I've also built and installed VTK though for some reason it doesn't find it even when I manually select the build directory.
以下是我的CMake日志的相关部分:
VTK.请在CMake中将-DVTK_DIR设置为VTK构建目录，或使用VTKConfig.cmake文件将其设置为VTK安装子目录
OpenCV Python:在开发过程中附加到PYTHONPATH:C:/DEV/opencv-4.2.0/builds/python_loader
咖啡:不
Protobuf:不
Glog:是
freetype2:否
harfbuzz:不
由于未找到OGRE3D而禁用了模块opencv_ovis
没有使用导出的gflags CMake配置集的偏好，也没有提供包含/库目录的提示.默认情况下，首选安装/导出的gflags CMake配置.
找到已安装的gflags版本:C:/Program Files(x86)/gflags/lib/cmake/gflags
检测到的gflags版本:2.2.2
正在检查SFM部门...错误
模块opencv_sfm已禁用，因为未找到以下依赖项:Glog/Gflags
推荐答案
我设法使SFM模块最终得以编译.我并不能100％地解决它，但是我做了以下事情:我删除了gflags，glog和ceres-solver的所有版本.我下载了较早版本的ceres-solver(1.14)和VTK(8.2.0).早期版本可能与使用opencv4.2和python 3.7有关.
I managed to get the SFM module to compile finally. I am not 100% on what fixed it but here is what I did: I deleted all versions of gflags, glog, and ceres-solver. I downloaded a slightly older version of ceres-solver (1.14) and VTK (8.2.0). The earlier versions might be related to using opencv4.2 and python 3.7.
我将gflags和glog与eigen一起放置在ceres-solver文件夹中.然后使用CMake和Visual Studio 2019，我在调试和发布中构建并安装了gflags.glog(链接到gflags)仅在发行版中.最后，我构建并安装了链接到glog，gflags和本征的ceres-solver.遵循本教程: http://sylvain.duchene.im/how-to-build-ceres-under-windows/
I placed gflags and glog in the ceres-solver folder with eigen. Then using CMake and visual studio 2019 I built and installed gflags in debug and release. glog (linking to gflags) only in release. Finally, I built and installed ceres-solver linking to glog, gflags and eigen. Following this tutorial: http://sylvain.duchene.im/how-to-build-ceres-under-windows/
然后，当我使用CMake通过contribs库构建openCV4.2时，我发现了sfm模块和VTK.
Then when I used CMake to build openCV4.2 with the contribs libraries I found both the sfm module and VTK.
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