如何更改 OpenCV 中 cvSave 的路径和权限？
我正在进行训练，在所有阶段完成后，我收到一个错误：
OpenCV Error: Unspecified error (Could not open the file storage. Check the path and permissions) in cvSave, file /opt/local/var/macports/build/_opt_mports_dports_graphics_opencv/opencv/work/opencv-2.4.9/modules/core/src/persistence.cpp, line 5036
libc++abi.dylib: terminating with uncaught exception of type cv::Exception: /opt/local/var/macports/build/_opt_mports_dports_graphics_opencv/opencv/work/opencv-2.4.9/modules/core/src/persistence.cpp:5036: error: (-2) Could not open the file storage. Check the path and permissions in function cvSave
问题似乎与函数 cvSave 中的路径和权限有关，但我不确定如何更改这些，或者它们有什么问题。任何解决此问题的帮助表示赞赏。