public Color[,] Transform(Color[,] image, INearestColorStrategy nearestColorStrategy)
{
var result = new Color[image.GetLength(0), image.GetLength(1)];
for (int y = 0; y < image.GetLength(0); y++)
{
for (int x = 0; x < image.GetLength(1); x++)
{
result[y, x] = FindMostSuitableAvailibleColor(image[y, x], nearestColorStrategy);
}
}
return(result);
}
private Color FindMostSuitableAvailibleColor(Color color, INearestColorStrategy nearestColorStrategy)
{
if (_cachedColors.TryGetValue(color, out var neighbour))
{
return(neighbour);
}
var distances = _pallet.Select(c =>
new { Neighbour = c, Distance = nearestColorStrategy.DistanceToNeighbour(color, c) });
var minDistance = distances.Min(x => x.Distance);
neighbour = distances.First(x => x.Distance == minDistance).Neighbour;
_cachedColors.Add(color, neighbour);
return(neighbour);
}
