public Bitmap ToImage(bool Freq = false)
{
int scale = _Width * _Height;
int i;
double max = double.MinValue;
double min = double.MaxValue;
double[] tmpdata = new double[scale];
for (i = 0; i < scale; ++i)
{
tmpdata[i] = this[i].Modulus;
if (Freq)
{
tmpdata[i] = Math.Log10(tmpdata[i]);
}
max = max < tmpdata[i] ? tmpdata[i] : max;
min = min > tmpdata[i] ? tmpdata[i] : min;
}
double s = 255 / (max - min);
Bitmap result = new Bitmap(_Width, _Height);
BitmapData resultdata = result.LockBits(new Rectangle(0, 0, result.Width, result.Height), ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
byte * resultpointer = (byte *)resultdata.Scan0.ToPointer();
for (i = 0; i < scale; ++i)
{
resultpointer[0] = resultpointer[1] = resultpointer[2] = ImgF.D2B((tmpdata[i] - min) * s);
resultpointer[3] = 255;
resultpointer += 4;
}
result.UnlockBits(resultdata);
return(result);
}
public BGRImg Extend()
{
int ewidth = (int)Math.Pow(2, ImgF.Log2(_Width)),
eheight = (int)Math.Pow(2, ImgF.Log2(_Height));
BGRImg result = new BGRImg(ewidth, eheight);
int startx = (ewidth - _Width) / 2,
starty = (eheight - _Height) / 2;
int endx = startx + _Width,
endy = starty + _Height;
int ttx, tty;
int y, x, t;
for (y = 0; y < eheight; ++y)
{
for (x = 0; x < ewidth; ++x)
{
ttx = x;
tty = y;
while (ttx - startx < 0)
{
ttx += Math.Abs(ttx - startx) * 2 - 1;
}
while (ttx - startx >= _Width)
{
ttx -= Math.Abs(ttx - startx - _Width) * 2 + 1;
}
while (tty - starty < 0)
{
tty += Math.Abs(tty - starty) * 2 - 1;
}
while (tty - starty >= _Height)
{
tty -= Math.Abs(tty - starty - _Height) * 2 + 1;
}
for (t = 0; t < 3; ++t)
{
result[t, x, y] = Complex.FromRealImaginary(this[t, ttx - startx, tty - starty].Real, this[t, ttx - startx, tty - starty].Imag);
}
}
}
return(result);
}
public void Sharpen()
{
ImgF.Sharpen(_BGR[0], _Width, _Height);
ImgF.Sharpen(_BGR[1], _Width, _Height);
ImgF.Sharpen(_BGR[2], _Width, _Height);
}
private void SpatialFilter(double[,] filter)
{
_BGR[0] = ImgF.SpatialFilter(_BGR[0], _Width, _Height, filter);
_BGR[1] = ImgF.SpatialFilter(_BGR[1], _Width, _Height, filter);
_BGR[2] = ImgF.SpatialFilter(_BGR[2], _Width, _Height, filter);
}
