[C#] 열화상 이미지에 온도데이터 표출

var visual = new DrawingVisual();
                using (DrawingContext drawingContext = visual.RenderOpen())
                {
                    //drawingContext.DrawImage(bitmapSource, new Rect(0, 0, 256, 256));
                    drawingContext.DrawImage(wb, new Rect(0, 0, 600, 600));	
                    //wb 비트맵 인스턴스 
                    //ex) WriteableBitmap wb = new WriteableBitmap(iWx, iHy, 96, 96, PixelFormats.Bgra32, null);
                    for (y = 0; y < iHy; y++)
                    {
                        for (x = 0; x < iWx; x++)
                        {
                            //string sTempData = string.Format("{0:D2}", allData[y, x]);
                            string sTempData = allData[y, x].ToString().PadLeft(2, '0').Substring(0, 2);

                            drawingContext.DrawText	//온도데이터 string 출력
                                (
                                    new FormattedText(
                                        sTempData, 
                                        CultureInfo.InvariantCulture, 
                                        FlowDirection.LeftToRight,
                                        new Typeface("Segoe UI"), 
                                        (10/tadInterpolation.nInterpol), 
                                        Brushes.Black
                                    ), 
                                    new Point((double)(600*x)/ iWx, (600 * y) / iHy)
                                );
                            
                        }
                    }
                    
                }
                var image = new DrawingImage(visual.Drawing);
                imgThermal.Source = image;