public void PictureTaken(object sender, ProcessedCameraPreview.PictureTakenEventArgs ea)
{
Android.Graphics.Bitmap bmp = ea.Bitmap;
Camera camera = ea.Camera;
try
{
Android.Graphics.Bitmap thumbnail = null;
int maxThumbnailSize = 96;
if (_imageFilter == null)
{
_lastSavedImageFile = ProcessedCameraPreview.SaveBitmap(this, bmp, PackageName, _topLayer);
thumbnail = ProcessedCameraPreview.GetThumbnail(bmp, maxThumbnailSize);
bmp.Dispose();
}
else
{
Image <Bgr, Byte> buffer1 = new Image <Bgr, byte>(bmp);
bmp.Dispose();
using (ImageFilter filter = _imageFilter.Clone() as ImageFilter)
{
if (filter is DistorFilter)
{
//reduce the image size to half because the distor filter used lots of memory
Image <Bgr, Byte> tmp = buffer1.PyrDown();
buffer1.Dispose();
buffer1 = tmp;
}
if (filter.InplaceCapable)
{
filter.ProcessData(buffer1.Mat, buffer1.Mat);
}
else
{
Image <Bgr, Byte> buffer2 = new Image <Bgr, byte>(buffer1.Size);
filter.ProcessData(buffer1.Mat, buffer2.Mat);
buffer1.Dispose();
buffer1 = buffer2;
}
}
using (Android.Graphics.Bitmap result = buffer1.ToBitmap())
{
buffer1.Dispose();
_lastSavedImageFile = ProcessedCameraPreview.SaveBitmap(this, result, PackageName, _topLayer);
thumbnail = ProcessedCameraPreview.GetThumbnail(result, maxThumbnailSize);
}
}
_lastCapturedImageButton.SetImageBitmap(thumbnail);
}
catch (Exception excpt)
{
this.RunOnUiThread(() =>
{
while (excpt.InnerException != null)
{
excpt = excpt.InnerException;
}
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.SetTitle("Error saving file");
alert.SetMessage(excpt.Message);
alert.SetPositiveButton("OK", (s, er) => { });
alert.Show();
});
return;
}
/*
* catch (FileNotFoundException e)
* {
* Android.Util.Log.Debug("Emgu.CV", e.Message);
* }
* catch (IOException e)
* {
* Android.Util.Log.Debug("Emgu.CV", e.Message);
* } */
/*
* try
* {
* ExifInterface exif = new ExifInterface(f.FullName);
* // Read the camera model and location attributes
* exif.GetAttribute(ExifInterface.TagModel);
* float[] latLng = new float[2];
* exif.GetLatLong(latLng);
* // Set the camera make
* exif.SetAttribute(ExifInterface.TagMake, "My Phone");
* exif.SetAttribute(ExifInterface.TagDatetime, System.DateTime.Now.ToString());
* }
* catch (IOException e)
* {
* Android.Util.Log.Debug("Emgu.CV", e.Message);
* }*/
Toast.MakeText(this, "File Saved.", ToastLength.Short).Show();
camera.StartPreview();
}
