private async void recognizeButton_Click(object sender, RoutedEventArgs e)
{
FileOpenPicker fileOpenPicker = new FileOpenPicker();
fileOpenPicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
fileOpenPicker.FileTypeFilter.Add(".jpg");
fileOpenPicker.FileTypeFilter.Add(".bmp");
fileOpenPicker.FileTypeFilter.Add(".png");
fileOpenPicker.ViewMode = PickerViewMode.Thumbnail;
var inputFile = await fileOpenPicker.PickSingleFileAsync();
if (inputFile == null)
{
// The user cancelled the picking operation
return;
}
TimeSpan duration;
imageLabel.Text = "Recognizing...";
DateTime startTime = DateTime.UtcNow;
SoftwareBitmap softwareBitmap;
using (IRandomAccessStream stream = await inputFile.OpenAsync(FileAccessMode.Read))
{
// Create the decoder from the stream
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(stream);
// Get the SoftwareBitmap representation of the file
softwareBitmap = await decoder.GetSoftwareBitmapAsync();
softwareBitmap = SoftwareBitmap.Convert(softwareBitmap, BitmapPixelFormat.Bgra8, BitmapAlphaMode.Ignore);
var source = new SoftwareBitmapSource();
await source.SetBitmapAsync(softwareBitmap);
previewImage.Source = source;
VideoFrame vf = VideoFrame.CreateWithSoftwareBitmap(softwareBitmap);
ModelInput.data = vf;
try
{
ModelOutput = await ModelGen.EvaluateAsync(ModelInput);
string labelText = "";
labelText += string.Format("{0}\r\n", ModelOutput.classLabel[0]);
duration = DateTime.UtcNow - startTime;
labelText += string.Format("\r\n\r\n\r\n\r\n{0:#}ms", duration.TotalMilliseconds);
imageLabel.Text = labelText;
}
catch (Exception ex)
{
imageLabel.Text = ex.Message;
}
}
}
public async Task <Ee7165d4_x002D_31e3_x002D_468e_x002D_ba0c_x002D_565f0b33d377_1bc49a81_x002D_827d_x002D_48b3_x002D_84bf_x002D_3a9555b4c54eModelOutput> EvaluateAsync(Ee7165d4_x002D_31e3_x002D_468e_x002D_ba0c_x002D_565f0b33d377_1bc49a81_x002D_827d_x002D_48b3_x002D_84bf_x002D_3a9555b4c54eModelInput input)
{
Ee7165d4_x002D_31e3_x002D_468e_x002D_ba0c_x002D_565f0b33d377_1bc49a81_x002D_827d_x002D_48b3_x002D_84bf_x002D_3a9555b4c54eModelOutput output = new Ee7165d4_x002D_31e3_x002D_468e_x002D_ba0c_x002D_565f0b33d377_1bc49a81_x002D_827d_x002D_48b3_x002D_84bf_x002D_3a9555b4c54eModelOutput();
LearningModelBindingPreview binding = new LearningModelBindingPreview(learningModel);
binding.Bind("data", input.data);
binding.Bind("classLabel", output.classLabel);
binding.Bind("loss", output.loss);
LearningModelEvaluationResultPreview evalResult = await learningModel.EvaluateAsync(binding, string.Empty);
return(output);
}
