public void DrawDetectedBoundingBoxOnImage(DetectedItemInfo selectedItem = null)
{
var src = new BitmapImage(new Uri(m_ImageInfoModel.ImagePath, UriKind.Absolute));
Pen pen;
DrawingVisual dv = new DrawingVisual();
using (DrawingContext dc = dv.RenderOpen())
{
dc.DrawImage(src, new Rect(0, 0, src.PixelWidth, src.PixelHeight));
foreach (DetectedItemInfo item in DetectedItemInfoList)
{
if (item.Compare(selectedItem))
{
pen = new Pen(Brushes.Green, 3);
var overLayBrush = new SolidColorBrush(Color.FromArgb(150, 255, 255, 102));
dc.DrawRectangle(overLayBrush, pen, new Rect(item.X, item.Y, item.Width, item.Height));
}
else
{
pen = new Pen(Brushes.Blue, 3);
dc.DrawRectangle(Brushes.Transparent, pen, new Rect(item.X, item.Y, item.Width, item.Height));
}
}
}
RenderTargetBitmap rtb = new RenderTargetBitmap(src.PixelWidth, src.PixelHeight, 96, 96, PixelFormats.Pbgra32);
rtb.Render(dv);
ImgSrc = rtb;
}
public bool Compare(DetectedItemInfo newItem)
{
bool result = false;
if (newItem != null)
{
if (newItem.Type == this.Type && newItem.Confidence == this.Confidence &&
newItem.X == this.X && newItem.Y == this.Y && newItem.Width == this.Width &&
newItem.Height == this.Height)
{
result = true;
}
}
return(result);
}
private void ResultsDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
ResultInfoModel resultModel = ResultsDataGrid.SelectedItem as ResultInfoModel;
if (resultModel == null)
{
return;
}
DetectedItemInfo item = new DetectedItemInfo();
item.Type = resultModel.DetectionLabel;
item.Confidence = resultModel.Confidence;
item.X = resultModel.DetectedBoxLeftTopX;
item.Y = resultModel.DetectedBoxLeftTopY;
item.Width = resultModel.DetectedBoxWidth;
item.Height = resultModel.DetectedBoxHeight;
PreviewImageModel previewModel = PreviewImageModel.Instance;
previewModel.DrawDetectedBoundingBoxOnImage(item);
}