public void cutChar(Bitmap img) { Graphics gp = Graphics.FromImage(img); Bitmap32 bmp32 = new Bitmap32(img); System.Drawing.Imaging.PixelFormat format = new System.Drawing.Imaging.PixelFormat(); Point top, left, bot, right, prect; bmp32.LockBitmap(); top = bmp32.TopPoint(); left = bmp32.LeftPoint(); bot = bmp32.BotPoint(); right = bmp32.RightPoint(); //bmp32.Vector(); int of = bmp32.Offset(); for (int y = 0; y < img.Height; y++) { for (int x = 0; x < img.Width; x++) { bmp32.DrawOutLine(x, y, of); } } bmp32.UnlockBitmap(); prect = new Point(left.X, top.Y); Rectangle rect = new Rectangle(prect, new Size(right.X - left.X, bot.Y - top.Y)); Bitmap clone = img.Clone(rect, format); gp.DrawRectangle(new Pen(Color.Green), rect); picFitter.Image = clone; }