public void PaintSlots(String parkingName, ref Hashtable parkinglist, int counter, Bitmap bmModel, Bitmap bmFrame, Bitmap[] SlotsFrames, Bitmap[] ParkingSlotsModel, Point[] ParkingPoint, Graphics graphics, parkingSlot parkings)
        {
            for (int i = 0; i < (counter); i++)
            {
                parkings.QuadrilateralSlotsTransformation(ParkingPoint, ParkingSlotsModel, bmModel, i); //
                parkings.QuadrilateralSlotsTransformation(ParkingPoint, SlotsFrames, bmFrame, i);

                Subtract filter = new Subtract(ParkingSlotsModel[i]);
                Bitmap resultImage = filter.Apply(SlotsFrames[i]);

                Boolean boolean = false;
                int valueToCompare = 130;

                boolean = parkings.emptyOrFull(resultImage, valueToCompare);

                if (boolean)
                {
                    int cont = i + 1;

                    //MessageBox.Show(parkingName + " full lot #" + cont);
                    parkinglist[parkingName + cont] = "Ocupado";
                    Color color = new Color();
                    color = Color.FromArgb(0x30FF0000);
                    Point[] parkingLot = { ParkingPoint[0 + (4 * i)], ParkingPoint[1 + (4 * i)],
                                         ParkingPoint[2 + (4 * i)], ParkingPoint[3 + (4 * i)] };
                    graphics.DrawPolygon(new Pen(Color.Gray, 3), parkingLot);
                    graphics.FillPolygon(new SolidBrush(color), parkingLot);
                }
                else
                {
                    int resu = i + 1;
                    parkinglist[parkingName + resu] = "Vacio";
                    Point[] parkingLot = { ParkingPoint[0 + (4 * i)], ParkingPoint[1 + (4 * i)],
                                         ParkingPoint[2 + (4 * i)], ParkingPoint[3 + (4 * i)] };
                    graphics.DrawPolygon(new Pen(Color.Gray, 3), parkingLot);
                    graphics.FillPolygon(new SolidBrush(Color.FromArgb(0x3000ff00)), parkingLot);
                }

            }
        }