private void RecogniseButton_Click(object sender, EventArgs e)
        {
            Bitmap img = ImageProcessing.CropWhite(pictureBox1.Image, 75, 75);

            predictionLabel.Text = controller.RecogniseImage(img).ToString();


            ClearPicture();
        }
        public char GetPrediction(CNNController ctrl)
        {
            using (Bitmap img = new Bitmap(imagePath))
            {
                Bitmap bmp = ImageProcessing.CropWhite(img, 75, 75);
                bmp.RotateFlip(RotateFlipType.Rotate180FlipNone);

                img.Dispose();

                return(ctrl.RecogniseImage(bmp));
            }
        }