public Bitmap Apply(Bitmap original)
{
GrayscaleEffect.Grasycale gray = new GrayscaleEffect.Grasycale();
if (!notGray) original = gray.Apply(original);
FilterProcessor processor = new FilterProcessor();
processor.SetMatrix(new double[][] { new double[] { 1, 2, 1 }, new double[] { 0, 0, 0 }, new double[] { -1, -2, -1 } });
Bitmap Gx = processor.Process((Bitmap)original.Clone());
processor.SetMatrix(new double[][] { new double[] { 1, 0, -1 }, new double[] { 2, 0, -2 }, new double[] { 1, 0, -1 } });
Bitmap Gy = processor.Process((Bitmap)original.Clone());
Rectangle rect = new Rectangle(0, 0, original.Width, original.Height);
#region Initialization
System.Drawing.Imaging.BitmapData bmpDataX = Gx.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
IntPtr ptrX = bmpDataX.Scan0;
int bytesX = Math.Abs(bmpDataX.Stride) * bmpDataX.Height;
byte[] valuesGx = new byte[bytesX];
System.Runtime.InteropServices.Marshal.Copy(ptrX, valuesGx, 0, bytesX);
Gx.UnlockBits(bmpDataX);
System.Drawing.Imaging.BitmapData bmpDataY = Gy.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
IntPtr ptrY = bmpDataY.Scan0;
int bytesY = Math.Abs(bmpDataY.Stride) * bmpDataY.Height;
byte[] valuesGy = new byte[bytesY];
System.Runtime.InteropServices.Marshal.Copy(ptrY, valuesGy, 0, bytesY);
Gy.UnlockBits(bmpDataY);
System.Drawing.Imaging.BitmapData bmpData = original.LockBits(rect, System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
IntPtr ptr = bmpData.Scan0;
int bytes = Math.Abs(bmpData.Stride) * bmpData.Height;
byte[] values = new byte[bytes];
System.Runtime.InteropServices.Marshal.Copy(ptr, values, 0, bytes);
#endregion
for (int i = 0; i < values.Length; i += 3)
{
if (i + 2 >= values.Length) break;
double r = Math.Sqrt((double)valuesGx[i + 2] * (double)valuesGx[i + 2] + (double)valuesGy[i + 2] * (double)valuesGy[i + 2]);
double g = Math.Sqrt((double)valuesGx[i + 1] * (double)valuesGx[i + 1] + (double)valuesGy[i + 1] * (double)valuesGy[i + 1]);
double b = Math.Sqrt((double)valuesGx[i + 0] * (double)valuesGx[i + 0] + (double)valuesGy[i + 0] * (double)valuesGy[i + 0]);
values[i + 0] = (byte)(r / Math.Sqrt(2));
values[i + 1] = (byte)(g / Math.Sqrt(2));
values[i + 2] = (byte)(b / Math.Sqrt(2));
}
System.Runtime.InteropServices.Marshal.Copy(values, 0, ptr, bytes);
original.UnlockBits(bmpData);
return original;
}
public Bitmap Apply(Bitmap original)
{
try
{
FilterProcessor fp = new FilterProcessor(_matrix);
return fp.Process(original, _normalize);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
return original;
}
}
private bool CheckDependences()
{
try { FilterProcessor fp = new FilterProcessor(); return true; }
catch { return false; }
}
public System.Drawing.Bitmap Apply(System.Drawing.Bitmap original)
{
CalculateMatrix();
FilterProcessor processor = new FilterProcessor(_matrix, true);
return processor.Process(original);
}
