static void Main(string[] args)
{
var OriginalPath = args[0];
var Original = new Bitmap(OriginalPath);
var Converted = new Bitmap(Original.Width, Original.Height, PixelFormat.Format1bppIndexed);
double average = 0.5;
double sigma = 0.1;
if (args.Length > 2)
{
average = double.Parse(args[1]);
if (args.Length == 3)
sigma = double.Parse(args[2]);
else
throw new ArgumentException("Too Many Options!");
}
Stopwatch sw = new Stopwatch();
sw.Start();
int Width = Original.Width, Height = Original.Height;
using (var proc = new BmpProc1(Converted))
{
double alpha, beta;
double b;
using (var proc_original = new BmpProc32(Original))
for (int y = 0; y < Height; ++y)
{
for (int x = 0; x < Width; ++x)
{
b = proc_original[x, y].GetBrightness();
alpha = rand.NextDouble();
beta = rand.NextDouble();
b += sigma * Math.Sqrt(-2 * Math.Log(alpha)) * Math.Cos(2 * Math.PI * beta);
if (b > average)
proc[x, y] = true;
else
proc[x, y] = false;
}
}
Original.Dispose();
}
sw.Stop();
Console.WriteLine("{0} Seconds.", sw.Elapsed.TotalSeconds);
var SaveFileName = Path.Combine(Path.GetDirectoryName(OriginalPath), Path.GetFileNameWithoutExtension(OriginalPath) + "_mono.bmp");
Converted.Save(SaveFileName, ImageFormat.Bmp);
Converted.Dispose();
}
private void ConvertClick(object sender, EventArgs e)
{
if (this.Original == null)
return;
Converted = new Bitmap(Original.Width, Original.Height, PixelFormat.Format1bppIndexed);
Stopwatch sw = new Stopwatch();
sw.Start();
int Width = Original.Width, Height = Original.Height;
using (var proc = new BmpProc1(Converted))
{
double alpha, beta;
{
double b;
using (var proc_original = new BmpProc32(Original))
for (int y = 0; y < Height; ++y)
{
for (int x = 0; x < Width; ++x)
{
b = proc_original[x, y].GetBrightness();
alpha = rand.NextDouble();
beta = rand.NextDouble();
b += this.b_sigma * Math.Sqrt(-2 * Math.Log(alpha)) * Math.Cos(2 * Math.PI * beta);
if (b > this.b_average)
proc[x, y] = true;
else
proc[x, y] = false;
}
}
}
}
sw.Stop();
this.pictureBox1.Image = Converted;
MessageBox.Show(string.Format("{0}秒", sw.Elapsed.TotalSeconds));
}
private unsafe void feedbackToolStripMenuItem_Click(object sender, EventArgs e)
{
double b;
using (var proc_original = new BmpProc32(Original))
{
for (int y = 0; y < Height; ++y)
{
for (int x = 0; x < Width; ++x)
{
b = proc_original.GetPixel(x, y).GetBrightness();
b_average += b;
b_sigma += b * b;
}
}
b_average /= Width * Height;
b_sigma = Math.Sqrt(b_sigma / (Width * Height) - b_average * b_average);
}
}