private BitmapSource DrawFacesContext(BitmapSource baseImage, IReadOnlyList <Face> faces,
IReadOnlyList <EmotionScores> emotionScores, IReadOnlyList <string> celebName)
{
if (faces == null)
{
return(baseImage);
}
void DrawAction(DrawingContext drawingContext, double annotationScale)
{
for (var i = 0; i < faces.Count; i++)
{
var face = faces[i];
if (face.FaceRectangle == null)
{
continue;
}
var faceRect = new Rect(face.FaceRectangle.Left, face.FaceRectangle.Top, face.FaceRectangle.Width,
face.FaceRectangle.Height);
var text = "";
if (face.FaceAttributes != null)
{
text += _faceService.SummarizeFaceAttributes(face.FaceAttributes);
}
if (emotionScores?[i] != null)
{
text += _emotionService.SummarizeEmotionScores(emotionScores[i]);
}
if (celebName?[i] != null)
{
text += celebName[i];
}
faceRect.Inflate(6 * annotationScale, 6 * annotationScale);
var lineThickness = 4 * annotationScale;
drawingContext.DrawRectangle(Brushes.Transparent, new Pen(_sLineBrush, lineThickness), faceRect);
if (text == "")
{
continue;
}
var ft = new FormattedText(text, CultureInfo.CurrentCulture, FlowDirection.LeftToRight, _sTypeface,
16 * annotationScale, Brushes.Black);
var pad = 3 * annotationScale;
var ypad = pad;
var xpad = pad + 4 * annotationScale;
var origin = new Point(faceRect.Left + xpad - lineThickness / 2,
faceRect.Top - ft.Height - ypad + lineThickness / 2);
var rect = ft.BuildHighlightGeometry(origin).GetRenderBounds(null);
rect.Inflate(xpad, ypad);
drawingContext.DrawRectangle(_sLineBrush, null, rect);
drawingContext.DrawText(ft, origin);
}
}
return(DrawOverlay(baseImage, DrawAction));
}
private BitmapSource DrawFacesContext(BitmapSource baseImage, Microsoft.ProjectOxford.Face.Contract.Face[] faces, EmotionScores[] emotionScores, string[] celebName)
{
if (faces == null)
{
return(baseImage);
}
Action <DrawingContext, double> drawAction = (drawingContext, annotationScale) =>
{
for (int i = 0; i < faces.Length; i++)
{
var face = faces[i];
if (face.FaceRectangle == null)
{
continue;
}
var faceRect = new Rect(
face.FaceRectangle.Left, face.FaceRectangle.Top,
face.FaceRectangle.Width, face.FaceRectangle.Height);
string text = "";
if (face.FaceAttributes != null)
{
text += _faceService.SummarizeFaceAttributes(face.FaceAttributes);
}
if (emotionScores?[i] != null)
{
text += _emotionService.SummarizeEmotionScores(emotionScores[i]);
}
if (celebName?[i] != null)
{
text += celebName[i];
}
faceRect.Inflate(6 * annotationScale, 6 * annotationScale);
var lineThickness = 4 * annotationScale;
drawingContext.DrawRectangle(
Brushes.Transparent,
new Pen(s_lineBrush, lineThickness),
faceRect);
if (text != "")
{
var ft = new FormattedText(text,
CultureInfo.CurrentCulture, FlowDirection.LeftToRight, s_typeface,
16 * annotationScale, Brushes.Black);
var pad = 3 * annotationScale;
var ypad = pad;
var xpad = pad + 4 * annotationScale;
var origin = new System.Windows.Point(
faceRect.Left + xpad - lineThickness / 2,
faceRect.Top - ft.Height - ypad + lineThickness / 2);
var rect = ft.BuildHighlightGeometry(origin).GetRenderBounds(null);
rect.Inflate(xpad, ypad);
drawingContext.DrawRectangle(s_lineBrush, null, rect);
drawingContext.DrawText(ft, origin);
}
}
};
return(DrawOverlay(baseImage, drawAction));
}