private void InnerReverseFft(object param)
{
InnerGetFftBuferParams p = (InnerGetFftBuferParams)param;
for (int l = p.begin1; l < p.end1; l++)
{
for (int k = p.begin2; k < p.end2; k++)
{
Complex sc = new Complex(0, 0);
for (int j = 0; j < SizeY; j++)
{
for (int i = 0; i < SizeX; i++)
{
Complex tl = new Complex(fftBuf[j][i].Real, fftBuf[j][i].Imaginary);
Complex top = new Complex(((double)(i * k)) / SizeX + ((double)(j * l)) / SizeY, 0);
top = Complex.Multiply(top, p.doublePi);
tl = Complex.Multiply(tl, Complex.Exp(top));
sc = Complex.Add(sc, tl);
}
}
int t = (int)(sc.Real / SizeX / SizeY);
imgInt[l][k] = System.Drawing.Color.FromArgb(t, t, t).ToArgb();
}
}
}
private void InnerGetFftBufer(object param)
{
InnerGetFftBuferParams p = (InnerGetFftBuferParams)param;
for (int l = p.begin1; l < p.end1; l++)
{
for (int k = p.begin2; k < p.end2; k++)
{
Complex sc = new Complex(0, 0);
for (int j = 0; j < SizeY; j++)
{
for (int i = 0; i < SizeX; i++)
{
Complex t = new Complex(imgInt[j][i] & 0xff, 0);
Complex top = new Complex(((double)(i * k)) / SizeX + ((double)(j * l)) / SizeY, 0);
top = Complex.Multiply(top, p.doublePi);
t = Complex.Multiply(t, Complex.Exp(top));
sc = Complex.Add(sc, t);
}
}
fftBuf[l][k] = sc;
}
}
}
