/home/tofi/gazr/tools/estimate_head_direction.cpp:71:5: error: ‘VideoCapture’ was not declared in this scope VideoCapture video_in; ^

[sarmadm]

Hi , i'm getting this error during make :

I'm using opencv 3.1 is that causes this error ?

tofi@tofi:~/gazr/build$ make Scanning dependencies of target gazr [ 25%] Building CXX object CMakeFiles/gazr.dir/src/head_pose_estimation.cpp.o Linking CXX shared library libgazr.so [ 25%] Built target gazr Scanning dependencies of target gazr_benchmark_head_pose_single_frame [ 50%] Building CXX object CMakeFiles/gazr_benchmark_head_pose_single_frame.dir/tools/benchmark_head_pose_estimation_single_frame.cpp.o Linking CXX executable gazr_benchmark_head_pose_single_frame [ 50%] Built target gazr_benchmark_head_pose_single_frame Scanning dependencies of target gazr_estimate_head_direction [ 75%] Building CXX object CMakeFiles/gazr_estimate_head_direction.dir/tools/estimate_head_direction.cpp.o /home/tofi/gazr/tools/estimate_head_direction.cpp: In function ‘int main(int, char)’: /home/tofi/gazr/tools/estimate_head_direction.cpp:71:5: error: ‘VideoCapture’ was not declared in this scope VideoCapture video_in; ^ /home/tofi/gazr/tools/estimate_head_direction.cpp:71:18: error: expected ‘;’ before ‘video_in’ VideoCapture video_in; ^ /home/tofi/gazr/tools/estimate_head_direction.cpp:74:9: error: ‘video_in’ was not declared in this scope video_in = VideoCapture(0); ^ /home/tofi/gazr/tools/estimate_head_direction.cpp:77:22: error: ‘CV_CAP_PROP_FRAME_WIDTH’ was not declared in this scope video_in.set(CV_CAP_PROP_FRAME_WIDTH, 640); ^ /home/tofi/gazr/tools/estimate_head_direction.cpp:78:22: error: ‘CV_CAP_PROP_FRAME_HEIGHT’ was not declared in this scope video_in.set(CV_CAP_PROP_FRAME_HEIGHT, 480); ^ /home/tofi/gazr/tools/estimate_head_direction.cpp:105:23: error: ‘video_in’ was not declared in this scope auto ok = video_in.read(frame); ^ /home/tofi/gazr/tools/estimate_head_direction.cpp:149:48: error: ‘imshow’ was not declared in this scope imshow("headpose", estimator._debug); ^ /home/tofi/gazr/tools/estimate_head_direction.cpp:151:27: error: ‘waitKey’ was not declared in this scope waitKey(10); ^ /home/tofi/gazr/tools/estimate_head_direction.cpp:154:33: error: ‘waitKey’ was not declared in this scope while(waitKey(10) != 1048603) {} ^ make[2]: ** [CMakeFiles/gazr_estimate_head_direction.dir/tools/estimate_head_direction.cpp.o] Error 1 make[1]: [CMakeFiles/gazr_estimate_head_direction.dir/all] Error 2 make: *** [all] Error 2

[sarmadm]

could you please comment on this error

[skadge]

Could you tell me the output of git log -1 (just to check what version of gazr you are trying to compile)

[sarmadm]

tofi@tofi:~/gazr-master$ git log -1 fatal: Not a git repository (or any of the parent directories): .git

tofi@tofi:~/gazr-master/build$ git log -1 fatal: Not a git repository (or any of the parent directories): .git

I have downloaded gazr and compiled it , didn't use git just normal download from github

[skadge]

ok, indeed, I've been able to reproduce the issue. It should be fixed with the lastest commit.

Please re-open if you still encounter an issue.

[sarmadm]

It works now thanks very much

[sarmadm]

When I call ./gazr_show_head_pose ../share/shape_predictor_68_face_landmarks.dat

tofi@tofi:~/gazr-master/build$ ./gazr_show_head_pose ../share/shape_predictor_68_face_landmarks.dat init done opengl support available You must specify the path to a trained dlib's face model with the option --model. Segmentation fault (core dumped)

what is the correct procedure ?

[severin-lemaignan]

Well the error message is quite clear: add --model :-)

$ ./gazr_show_head_pose --model ../share/shape_predictor_68_face_landmarks.dat

[sarmadm]

The processing speed is very low ,the video from webcam is almost freeze . what could be the reason ?

[skadge]

Check you've compiled both dlib and gazr in release mode. And please open different issues for different problems.