I am just trying to perform chessboard camera calibration based on [camera calibration](https://github.com/opencv/opencv/blob/master/samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp) sample.
So I am trying to let my QT app save the calibrations settings using Settings class as defined int above code. There is a function for this which is Settings.write but when I call as below it gives me this error:
void saveCalibrationSettings(const Settings currentSettings){
FileStorage fs = FileStorage(Ui::calibrationFilename, FileStorage::WRITE);
currentSettings.write(fs);
fs.release();
}
the error is as below:
Gtk-Message: 02:56:21.529: Failed to load module "canberra-gtk-module"
Input does not exist: images/CameraCalibration/VID5/VID5.xmlterminate called after throwing an instance of 'cv::Exception'
what(): OpenCV(4.0.1) /home/mike/opencv-4.0.1/modules/core/src/persistence.cpp:1995: error: (-2:Unspecified error) Incorrect element name {; should start with a letter or '_' in function 'operator<<'
I just need my QT GUI application to be able to save a Settings object into a file so that it could follow the correct calibration settings format which then can be fed to the calibration process.
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