//default 8-pallete
public static Bitmap BurkesColorDithering(Bitmap sourceImage, int paletteSize)
{
ColorImageQuantizer ciq = new ColorImageQuantizer(new MedianCutQuantizer());
Color[] colorTable = ciq.CalculatePalette(sourceImage, paletteSize);
BurkesColorDithering filter = new BurkesColorDithering();
filter.ColorTable = colorTable;
return(filter.Apply(sourceImage));
}
private Bitmap reducedColor(Bitmap image, int numColors)
{
// create color image quantization routine
ColorImageQuantizer ciq = new ColorImageQuantizer(new MedianCutQuantizer());
// create 16 colors table
Color[] colorTable = ciq.CalculatePalette(image, numColors);
// create dithering routine
FloydSteinbergColorDithering dithering = new FloydSteinbergColorDithering();
dithering.ColorTable = colorTable;
// apply the dithering routine
Bitmap newImage = dithering.Apply(image);
return(newImage);
}
public static Bitmap OrderedColorDithering(Bitmap bmp, int value)
{
// create color image quantization routine
ColorImageQuantizer ciq = new ColorImageQuantizer(new MedianCutQuantizer());
// create 256 colors table
Color[] colorTable = ciq.CalculatePalette(bmp, value);
// create dithering routine
OrderedColorDithering dithering = new OrderedColorDithering();
dithering.ColorTable = colorTable;
// apply the dithering routine
Bitmap newImage = dithering.Apply(bmp);
return(newImage);
}
static void Main(string[] args)
{
if (args.Length == 0)
{
Console.WriteLine("There was no file specified.");
filename = "i_eat_ass.png";
}
else
{
filename = args[0];
}
Image imageFile = Image.FromFile(filename);
Bitmap bmp = new Bitmap(imageFile);
ColorImageQuantizer ciq = new ColorImageQuantizer(new MedianCutQuantizer());
Color[] colorTable = ciq.CalculatePalette(bmp, 16);
Dictionary <String, int> colorMap = new Dictionary <String, int>();
for (int i = 0; i < colorTable.Length; i++)
{
try
{
colorMap.Add(colorTable[i].ToString(), i);
}
catch (System.ArgumentException e) {
}
}
Bitmap RImage = ciq.ReduceColors(bmp, colorTable);
int[] flatImage = new int[RImage.Width * RImage.Height];
for (int x = 0; x < RImage.Width; x++)
{
for (int y = 0; y < RImage.Height; y++)
{
flatImage[x + RImage.Width * y] = colorMap[RImage.GetPixel(x, y).ToString()];
}
}
output.AddRange(Encoding.UTF8.GetBytes("YAIF"));
Add16BitInt(2);
Add16BitInt(bmp.Width);
Add16BitInt(bmp.Height);
Add8BitInt(colorTable.Length * 3);
Add32BitInt(flatImage.Length / 2);
output.AddRange(Encoding.UTF8.GetBytes("F**K"));
for (int i = 0; i < colorTable.Length; i++)
{
Add8BitInt(colorTable[i].R);
Add8BitInt(colorTable[i].G);
Add8BitInt(colorTable[i].B);
}
for (int i = 0; i < flatImage.Length; i += 2)
{
AddNibbles(flatImage[i], flatImage[i + 1]);
}
byte[] outputArray = output.ToArray();
File.WriteAllBytes(args[0].Split('.')[0] + ".yaif", outputArray);
}