private void btnCreate_Click(object sender, EventArgs e)
        {
            string stringTemp="";
            string intTemp = "";

            _pm = new PictureModel()
            {
                Image = _bmp
            };

            _service = new SketchService();
            _sktc = new SketchModel();

            _sktc = _service.SetSketch(_pm);

            for (int i = 0; i < _pm.Image.Height; i++)
            {
                for (int j = 0; j < _pm.Image.Width; j++)
                {
                    stringTemp += _sktc.PixelArrayChar[j, i];
                }

                stringTemp += (char)13;
                stringTemp += (char)10;
            }

               // WriteToFile(stringTemp);

            CreateSketch(stringTemp, txtSketch);
        }
        private char[,] FillPixelsketch(PictureModel model)
        {
            char[,] arrTemp = new char[model.Image.Width, model.Image.Height];
            string optKeyColor;

            for (int i = 0; i < model.Image.Width; i++)
            {
                for (int j  = 0; j  < model.Image.Height; j++)
                {
                    optKeyColor = getOptimalKeyColor(model.PixelArrayInt[i, j]);
                    arrTemp[i, j] = Constant.LetterConstant.SingleOrDefault(x => x.Key == optKeyColor).Value;
                }
            }
            return arrTemp;
        }
        public SketchModel SetSketch(PictureModel model)
        {
            PictureModel returnModel = new PictureModel();
            SketchModel returnSketch = new SketchModel();

            //get Picture Information
            returnModel.Image = model.Image;
            returnModel.PixelArrayInt = new int[model.Image.Width,model.Image.Height];
            returnModel.PixelArrayInt = FillPixelArray(model.Image);

            //Set Sketch
            returnSketch.PixelArrayChar = FillPixelsketch(returnModel);

            return returnSketch;
        }
 public SketchService()
 {
     _picturemodel = new PictureModel();
     _sketchModel = new SketchModel();
 }