/// <summary>
/// Get the palette index for the passed color
/// </summary>
public int GetPaletteIndex(int pixel)
{
var ret = _root.GetPaletteIndex(pixel, 0);
if (ret < 0)
{
if (_paletteTable == null)
{
_paletteTable = new PaletteTable(_palette);
}
ret = _paletteTable.FindClosestPaletteIndex(Color.FromArgb(pixel));
}
return(ret);
}
/// <summary>
/// Convert the nodes in the octree to a palette with a maximum of colorCount colors
/// </summary>
/// <param name="colorCount">The maximum number of colors</param>
/// <returns>A list with the palettized colors</returns>
public List <Color> Palletize(int colorCount)
{
while (_leafCount > colorCount)
{
Reduce();
}
// Now palletize the nodes
var palette = new List <Color>(_leafCount);
int paletteIndex = 0;
_root.ConstructPalette(palette, ref paletteIndex);
// And return the palette
_palette = palette.ToArray();
_paletteTable = null;
return(palette);
}