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)); }