c++ - 错误 : ‘calcOpticalFlowPyrLK’ is not a member of ‘cv’ - OpenCV 2. 4.2

Question

我在 OpenCV 2.4.2 上遇到了这个错误。

我正在使用这行代码:

 cv::calcOpticalFlowPyrLK(prev, next, prev_pts, next_pts, status, error);

并且在编译时它显示了这个错误:

testopticalflow.cpp:75:4: error: ‘calcOpticalFlowPyrLK’ is not a member of ‘cv’

如果我使用 pkg-config，这是结果

pkg-config opencv --libs
/usr/local/lib/libopencv_calib3d.so /usr/local/lib/libopencv_contrib.so /usr/local/lib/libopencv_core.so /usr/local/lib/libopencv_features2d.so /usr/local/lib/libopencv_flann.so /usr/local/lib/libopencv_gpu.so /usr/local/lib/libopencv_highgui.so /usr/local/lib/libopencv_imgproc.so /usr/local/lib/libopencv_legacy.so /usr/local/lib/libopencv_ml.so /usr/local/lib/libopencv_nonfree.so /usr/local/lib/libopencv_objdetect.so /usr/local/lib/libopencv_photo.so /usr/local/lib/libopencv_stitching.so /usr/local/lib/libopencv_ts.so /usr/local/lib/libopencv_video.so /usr/local/lib/libopencv_videostab.so  

抱歉，对于 Linux 环境，我还是个新手，所以我不知道哪里出错了。

Answer 1

对不起，愚蠢的错误。我忘了将其添加为标题:

#include <opencv2/video/tracking.hpp>