private void ExtractRawRect_Click(object sender, RoutedEventArgs e)
{
try
{
// Convert the original image to grayscale
Convolution2D image = GetOriginalImageGrays();
if (image == null)
{
// The original image is empty
MessageBox.Show("Please load an image first", this.Title, MessageBoxButton.OK, MessageBoxImage.Warning);
return;
}
// Rectangle
RectInt rect = Convolutions.GetExtractRectangle(new VectorInt(image.Width, image.Height), false);
// Extract
AddKernel(image.Extract(rect, ConvolutionExtractType.RawUnit));
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
private void grdOrigImage_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
try
{
if (_selectionStartPoint == null)
{
return;
}
// Clear selection
grdOrigImage.ReleaseMouseCapture();
selectionBox.Visibility = Visibility.Collapsed;
Point start = _selectionStartPoint.Value;
_selectionStartPoint = null;
Convolution2D image = GetOriginalImageGrays();
if (image == null)
{
return;
}
// Screen coords
Point mousePos = e.GetPosition(grdOrigImage);
double minX = Math.Min(start.X, mousePos.X);
double minY = Math.Min(start.Y, mousePos.Y);
double maxX = Math.Max(start.X, mousePos.X);
double maxY = Math.Max(start.Y, mousePos.Y);
// Convert to convolution coords
double scaleX = image.Width / grdOrigImage.ActualWidth;
double scaleY = image.Height / grdOrigImage.ActualHeight;
int extractX1 = (minX * scaleX).ToInt_Round();
int extractY1 = (minY * scaleY).ToInt_Round();
int extractX2 = (maxX * scaleX).ToInt_Round();
int extractY2 = (maxY * scaleY).ToInt_Round();
if (extractX1 < 0)
{
extractX1 = 0;
}
if (extractY1 < 0)
{
extractY1 = 0;
}
if (extractX2 < 0)
{
extractX2 = 0;
}
if (extractY2 < 0)
{
extractY2 = 0;
}
if (extractX1 >= image.Width)
{
extractX1 = image.Width - 1;
}
if (extractY1 >= image.Height)
{
extractY1 = image.Height - 1;
}
if (extractX2 >= image.Width)
{
extractX2 = image.Width - 1;
}
if (extractY2 >= image.Height)
{
extractY2 = image.Height - 1;
}
int extractWidth = extractX2 - extractX1;
int extractHeight = extractY2 - extractY1;
if (extractWidth < 1 || extractHeight < 1)
{
return;
}
// Extract
AddKernel(image.Extract(new RectInt(extractX1, extractY1, extractWidth, extractHeight), ConvolutionExtractType.Edge));
AddKernel(image.Extract(new RectInt(extractX1, extractY1, extractWidth, extractHeight), ConvolutionExtractType.EdgeSoftBorder));
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}