/// <summary>色情報を入力する</summary>
/// <param name="buf">カラー配列</param>
private void SetColor(byte[] buf)
{
Random rnd = new Random();
List <Point3D>[] colorLists = new List <Point3D> [colors.Length];
for (int i = 0; i < colorLists.Length; i++)
{
colorLists[i] = new List <Point3D>();
}
HashSet <Point3D> hash = new HashSet <Point3D>();
for (int i = 0; i < buf.Length; i += 4)
{
int n = rnd.Next(0, colors.Length);
LAB lab = LAB.FromRGB(buf[i + 0], buf[i + 1], buf[i + 2]);
Point3D point = new Point3D(lab.L, lab.A, lab.B);
if (hash.Add(point))
{
colorLists[n].Add(point);
}
}
for (int i = 0; i < colors.Length; i++)
{
colors[i] = colorLists[i];
}
}
/// <summary>カラー配列の置き換え</summary>
/// <param name="buf">カラー配列</param>
private void Replace(byte[] buf)
{
for (int i = 0; i < buf.Length; i += 4)
{
LAB lab = LAB.FromRGB(buf[i + 0], buf[i + 1], buf[i + 2]);
Point3D c = new Point3D(lab.L, lab.A, lab.B);
int min = 0;
double minR = double.MaxValue;
for (int k = 0; k < center.Length; k++)
{
double r = Range(c, center[k]);
if (minR > r)
{
min = k;
minR = r;
}
}
Color color = LAB.ToRGB(LAB.FromLAB(center[min].X, center[min].Y, center[min].Z));
buf[i + 0] = color.R;
buf[i + 1] = color.G;
buf[i + 2] = color.B;
}
}