private void PreviewImageUpdate()
{
try
{
//get lut for stretching - preview image
var lut = HistogramTools.GetLutStretching(int.Parse(TextBoxMin.Text), int.Parse(TextBoxMax.Text));
//set new image after histogram stretching
PreviewImage.Source = HistogramTools.StretchHistogram(lut, _option);
//recalculate histogram after stretching
CalculateHistograms();
//update polygon graphs for visual representation of histograms
switch (_option)
{
case 0:
HistogramRed.Points = HistogramWindow.ConvertToPointCollection(HistogramR);
break;
case 1:
HistogramRed.Points = HistogramWindow.ConvertToPointCollection(HistogramG);
break;
case 2:
HistogramRed.Points = HistogramWindow.ConvertToPointCollection(HistogramB);
break;
case 3:
HistogramRed.Points = HistogramWindow.ConvertToPointCollection(HistogramU);
break;
}
}
catch (Exception e)
{
Debug.WriteLine(e.StackTrace);
}
}
private void OkButtonClick(object sender, RoutedEventArgs e)
{
//close the window
Close();
//perform lut calculation for main image
var lut = HistogramTools.GetLutStretching(int.Parse(TextBoxMin.Text), int.Parse(TextBoxMax.Text));
//update image with newer one after histogram stretching
MainWindow.ModifiedImgSingleton.Source = HistogramTools.StretchHistogram(lut, _option);
//recalculate histograms for updated image
HistogramTools.CalculateHistograms();
}
