private async void SeamCarve()
{
_isCarving = true;
try
{
var optimizeMode = CarveWidth ? OptimizeMode.Width : OptimizeMode.Height;
var imageMatrix = ImageMatrixFactory.FromBitmapSource(InputImage, optimizeMode);
var optimizedEnergyMatrix = ImageMatrixFactory.Empty <byte>(_energyMatrix.Width, _energyMatrix.Height, optimizeMode);
for (var x = 0; x < _energyMatrix.Width; x++)
{
for (var y = 0; y < _energyMatrix.Height; y++)
{
optimizedEnergyMatrix[x, y] = _energyMatrix[x, y];
}
}
var seamCarve = new SeamCarving(imageMatrix, optimizedEnergyMatrix);
var direction = CarveWidth ? Direction.Width : Direction.Height;
var dimensionCount = CarveWidth ? imageMatrix.Width : imageMatrix.Height;
var pixelRemoveCount = dimensionCount - DimensionPixels;
var resultImage = await Task.Run(() =>
{
for (var i = 0; i < pixelRemoveCount; i++)
{
seamCarve.CarveSingle(direction);
}
return(seamCarve.ImageMatrix.ToBitmapSource());
});
OutputImage = resultImage;
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
finally
{
_isCarving = false;
((RelayCommand)SeamCarveCommand).RaiseCanExecuteChanged();
}
}
private async void OpenImage()
{
#if DEBUG
var file = @"D:\test.jpg";
#else
var dialog = new OpenFileDialog
{
InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
DefaultExt = ".jpeg",
Filter = "Image files|*.jpg;*.jpeg;*.png;*.gif|All files (*.*)|*.*"
};
var dialogResult = dialog.ShowDialog();
if (dialogResult != true)
{
return;
}
var file = dialog.FileName;
#endif
_isLoading = true;
try
{
var image = await Task.Run(() =>
{
using (var fileStream = File.Open(file, FileMode.Open))
{
var img = new BitmapImage();
img.BeginInit();
img.CacheOption = BitmapCacheOption.OnLoad;
img.StreamSource = fileStream;
img.EndInit();
img.Freeze();
return(img);
}
});
InputImage = image;
OutputImage = image;
var imageMatrix = ImageMatrixFactory.FromBitmapSource(InputImage, OptimizeMode.Width);
var grayscaleImageMatrix = ImageMatrixFactory.Empty <byte>(imageMatrix.Width, imageMatrix.Height, imageMatrix.OptimizeMode);
imageMatrix.ToGrayScale(grayscaleImageMatrix);
var energyMatrix = ImageMatrixFactory.Empty <byte>(imageMatrix.Width, imageMatrix.Height, imageMatrix.OptimizeMode);
SeamCarvingHelper.ComputeEnergyMapBySobel(grayscaleImageMatrix, energyMatrix);
_energyMatrix = energyMatrix;
EnergyFunctionImage = energyMatrix.ToBitmapSource();
EnergyFunctionWithBiasImage = EnergyFunctionImage;
InputImageInfoStr = $"Width: {image.PixelWidth}, Height: {image.PixelHeight}";
DimensionPixels = CarveWidth ? image.PixelWidth : image.PixelHeight;
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
finally
{
_isLoading = false;
((RelayCommand)OpenImageCommand).RaiseCanExecuteChanged();
}
}