public void OnCameraViewStarted(int width, int height)
{
if (mWidth != width || mHeight != height)
{
mWidth = width;
mHeight = height;
mCalibrator = new CameraCalibrator(mWidth, mHeight);
if (CalibrationResult.tryLoad(this, mCalibrator.getCameraMatrix(), mCalibrator.getDistortionCoefficients()))
{
mCalibrator.setCalibrated();
}
mOnCameraFrameRender = new OnCameraFrameRender(new CalibrationFrameRender(mCalibrator));
}
}
public override bool OnOptionsItemSelected(IMenuItem item)
{
switch (item.ItemId)
{
case Resource.Id.calibration:
mOnCameraFrameRender =
new OnCameraFrameRender(new CalibrationFrameRender(mCalibrator));
item.SetChecked(true);
return(true);
case Resource.Id.undistortion:
mOnCameraFrameRender =
new OnCameraFrameRender(new UndistortionFrameRender(mCalibrator));
item.SetChecked(true);
return(true);
case Resource.Id.comparison:
mOnCameraFrameRender =
new OnCameraFrameRender(new ComparisonFrameRender(mCalibrator, mWidth, mHeight, Resources));
item.SetChecked(true);
return(true);
case Resource.Id.calibrate:
var res = this.Resources;
if (mCalibrator.getCornersBufferSize() < 2)
{
(Toast.MakeText(this, res.GetString(Resource.String.more_samples), ToastLength.Short)).Show();
return(true);
}
mOnCameraFrameRender = new OnCameraFrameRender(new PreviewFrameRender());
//OnPreExecute
var calibrationProgress = new ProgressDialog(this);
calibrationProgress.SetTitle(Resources.GetString(Resource.String.calibrating));
calibrationProgress.SetMessage(Resources.GetString(Resource.String.please_wait));
calibrationProgress.SetCancelable(false);
calibrationProgress.Indeterminate = true;
calibrationProgress.Show();
Task.Run(() => mCalibrator.calibrate())
//OnPostExecute
.ContinueWith(t =>
{
calibrationProgress.Dismiss();
mCalibrator.clearCorners();
mOnCameraFrameRender = new OnCameraFrameRender(new CalibrationFrameRender(mCalibrator));
String resultMessage = (mCalibrator.isCalibrated()) ?
Resources.GetString(Resource.String.calibration_successful) + " " + mCalibrator.getAvgReprojectionError() :
Resources.GetString(Resource.String.calibration_unsuccessful);
Toast.MakeText(this, resultMessage, ToastLength.Short).Show();
if (mCalibrator.isCalibrated())
{
CalibrationResult.save(this,
mCalibrator.getCameraMatrix(), mCalibrator.getDistortionCoefficients());
}
}, TaskScheduler.FromCurrentSynchronizationContext());
return(true);
default:
return(base.OnOptionsItemSelected(item));
}
}