public static Complex2D GenerateUniquePixels()
{
var result = new Complex2D(16, 16);
var d = result.Data;
for (var i = 0; i < d.Length; i++)
{
d[i] = i;
}
return(result);
}
public ComplexImage(Complex2D channel0, Complex2D channel1, Complex2D channel2, bool copy = true)
{
if (channel0.Width != channel1.Width ||
channel0.Width != channel2.Width ||
channel0.Height != channel1.Height ||
channel0.Height != channel2.Height)
{
throw new Exception("Not in the same size");
}
C0 = copy ? new Complex2D(channel0) : channel0;
C1 = copy ? new Complex2D(channel1) : channel1;
C2 = copy ? new Complex2D(channel2) : channel2;
}
/// <summary>
/// Creates an image in frequenzy domain which one or more diagonal sinus
/// </summary>
/// <param name="w"></param>
/// <param name="h"></param>
/// <param name="cycles0">index where the first sinus begin, a higher value creates a sinus with a higher frequenz</param>
/// <param name="numSin">number - 1 of the next higher sinus</param>
/// <returns></returns>
public static Complex2D CreateDiagFreqz(int w, int h, int cycles0, int numSin)
{
var l = w * h;
var c = new Complex2D(w, h);
var d = c.Data;
d[0] = Complex.FromPolarCoordinates(.5 * l, 0);
var mag = (.25 * l) / numSin;
var cplx = Complex.FromPolarCoordinates(mag, 0);
for (var i = 0; i < numSin; i++)
{
d[(cycles0 + i) * (w + 1)] = d[(w * h) - 1 - ((h + 1) * ((cycles0 + i) - 1))] = cplx;
}
return(c);
}
/// <summary>
/// Create a sin funktion with frequency f along the given direction
/// </summary>
/// <param name="f"></param>
/// <param name="angle">direction of the sin in degrees</param>
/// <returns></returns>
public static Complex2D GenerateSin(int w, int h, double f, double angle)
{
var result = new Complex2D(w, h);
var a = ((2 * Math.PI * f) / w) * Math.Cos(angle = MathCV.ToRad(angle));
var b = ((2 * Math.PI * f) / h) * Math.Sin(angle);
var d = result.Data;
for (int y = 0,
i = 0;
y < h;
y++)
{
var v = y * b;
for (var x = 0; x < w; x++, i++)
{
d[i] = Math.Sin(v + (x * a));
}
}
return(result);
}
public ComplexImage(Complex2D channel, bool copy = true)
: this(copy ? channel = new Complex2D(channel) : channel, channel, channel, false)
{
}
public ComplexImage(Complex2D channel)
{
C0 = new Complex2D(channel);
C1 = new Complex2D(channel);
C2 = new Complex2D(channel);
}
public ComplexImage(ComplexImage image)
{
C0 = new Complex2D(image.C0);
C1 = new Complex2D(image.C1);
C2 = new Complex2D(image.C2);
}
public ComplexImage(Size size)
{
C0 = new Complex2D(size.Width, size.Height);
C1 = new Complex2D(size.Width, size.Height);
C2 = new Complex2D(size.Width, size.Height);
}
public ComplexImage(int width, int height)
{
C0 = new Complex2D(width, height);
C1 = new Complex2D(width, height);
C2 = new Complex2D(width, height);
}