public double GetLABDist(ColorCount other)
{
return array.GetEDeltaColorDifference(other.array);
}
private Color GetMostCommonColor(double tolerance, double bkgTol)
{
List<ColorCount> colors = new List<ColorCount>();
ColorCount background = new ColorCount() { R = 255, G = 255, B = 255 };
BitmapData bmData = Image.LockBits(new Rectangle(0, 0, Image.Width, Image.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
int stride = bmData.Stride;
IntPtr Scan0 = bmData.Scan0;
bool[,] alreadyFilled = new bool[Image.Width, Image.Height];
unsafe
{
byte* p = (byte*)(void*)Scan0;
int nOffset = stride - Image.Width * 3;
for (int y = 0; y < Image.Height; ++y)
{
for (int x = 0; x < Image.Width; ++x)
{
ColorCount temp = new ColorCount() { R = p[2], G = p[1], B = p[0] };
if (background.GetLABDist(temp) > bkgTol)
{
int bestindex = -1;
double best = Double.MaxValue;
for (int i = 0; i < colors.Count; i++)
{
double test = colors[i].GetLABDist(temp);
if (test < best && test < tolerance)
{
best = test;
bestindex = i;
}
}
if (bestindex != -1 && colors.Count > 0)
{
colors[bestindex].FoundOne();
}
else
{
colors.Add(temp);
}
}
p += 3;
}
p += nOffset;
}
}
Image.UnlockBits(bmData);
colors.Sort((c, n) => -c.Count.CompareTo(n.Count));
return colors.FirstOrDefault().Color;
}