8000 Error for solvePnP in feature_detector.cpp when using cmake · Issue #1 · jan-skarupa/facerig · GitHub
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Error for solvePnP in feature_detector.cpp when using cmake #1

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NerveCoordinator opened this issue Aug 17, 2019 · 0 comments
Open

Error for solvePnP in feature_detector.cpp when using cmake #1

NerveCoordinator opened this issue Aug 17, 2019 · 0 comments

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@NerveCoordinator
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NerveCoordinator commented Aug 17, 2019 •
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I installed the following libraries:

sudo apt install libglm-dev libopencv-dev libassimp-dev libglfw3 libglfw3-dev

but when I run cmake I get the following error:

[ 45%] Linking CXX static library libRender.a
[ 65%] Built target Render
Scanning dependencies of target InputPipeline
[ 70%] Building CXX object src/input_pipeline/CMakeFiles/InputPipeline.dir/analyzers/face_detector_harr.cpp.o
[ 75%] Building CXX object src/input_pipeline/CMakeFiles/InputPipeline.dir/analyzers/feature_detector.cpp.o
/home/zephyr/workspace/ML/HelperCelestAI/facerig/src/input_pipeline/analyzers/feature_detector.cpp: In member function ‘std::array<float, 3> FeatureDetector::detect_face_direction(const std::array<cv::Point_<int>, 68>&)’:
/home/zephyr/workspace/ML/HelperCelestAI/facerig/src/input_pipeline/analyzers/feature_detector.cpp:38:18: error: invalid initialization of reference of type ‘cv::InputArray’ {aka ‘const cv::_InputArray&’} from expression of type ‘std::array<cv::Point3_<double>, 6>’
     cv::solvePnP(reference_points, rigging_landmarks, camera_matrix, dist_coeffs, rotation_vector, translation_vector);
                  ^~~~~~~~~~~~~~~~
In file included from /usr/include/opencv2/opencv.hpp:56,
                 from /home/zephyr/workspace/ML/HelperCelestAI/facerig/src/input_pipeline/analyzers/feature_detector.h:4,
                 from /home/zephyr/workspace/ML/HelperCelestAI/facerig/src/input_pipeline/analyzers/feature_detector.cpp:1:
/usr/include/opencv2/calib3d.hpp:581:19: note: in passing argument 1 of ‘bool cv::solvePnP(cv::InputArray, cv::InputArray, cv::InputArray, cv::InputArray, cv::OutputArray, cv::OutputArray, bool, int)’
 CV_EXPORTS_W bool solvePnP( InputArray objectPoints, InputArray imagePoints,
                   ^~~~~~~~
make[2]: *** [src/input_pipeline/CMakeFiles/InputPipeline.dir/build.make:76: src/input_pipeline/CMakeFiles/InputPipeline.dir/analyzers/feature_detector.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:129: src/input_pipeline/CMakeFiles/InputPipeline.dir/all] Error 2
make: *** [Makefile:84: all] Error 2

As far as I can tell openCV is installed correctly (tested with the sample code here). The core of this error appears to be this line:

feature_detector.cpp:38:18: error: invalid initialization of reference of type ‘cv::InputArray’ {aka ‘const cv::_InputArray&’} from expression of type ‘std::array<cv::Point3_<double>, 6>’

I don't know OpenCV, so I'm not quite sure where to go from here.
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