public Stroke GenerateStroke(ColorImage input, int x, int y, int s, int factor, int level)
{
ArrayList list = new ArrayList();
double m00, m01, m10, m11, m02, m20;
double a, b, c;
double tempval;
double dw, dxc, dyc;
int xc, yc;
double theta;
float w, l;
m00 = m01 = m10 = m11 = m02 = m20 = 0;
System.Drawing.Color firstColor = input.GetColor(x, y); //System::Drawing::Color::FromArgb((int)color[0], (int)color[1], (int)color[2]);
ColorImage cropImage = input.Crop(x, y, s, s);
ComputeMoments(cropImage, firstColor, s, ref m00, ref m01, ref m10, ref m11, ref m02, ref m20);
dxc = m10 / m00;
dyc = m01 / m00;
a = (m20 / m00) - (double)((dxc) * (dxc));
b = 2 * (m11 / m00 - (double)((dxc) * (dyc)));
c = (m02 / m00) - (double)((dyc) * (dyc));
theta = System.Math.Atan2(b, (a - c)) / 2;
tempval = System.Math.Sqrt(b * b + (a - c) * (a - c));
dw = System.Math.Sqrt(6 * (a + c - tempval));
w = (float)(System.Math.Sqrt(6 * (a + c - tempval)));
l = (float)(System.Math.Sqrt(6 * (a + c + tempval)));
xc = (int)(x + System.Math.Round(dxc - s / 2));
yc = (int)(y + System.Math.Round(dyc - s / 2));
Stroke stroke = new Stroke();
stroke.xc = factor * xc;
stroke.yc = factor * yc;
stroke.w = factor * w;
stroke.l = factor * l;
stroke.theta = (float)theta;
stroke.red = firstColor.R;
stroke.green = firstColor.G;
stroke.blue = firstColor.B;
stroke.level = level;
return(stroke);
}
public ColorImage GenerateStrokeArea(Bitmap input, int s)
{
ColorImage piece;
double m;
ArrayList list = new ArrayList();
double pixVal;
DateTime start = DateTime.Now;
//Bitmap img = new Bitmap(input.Width, input.Height);
ColorImage cImg = new ColorImage(input.Width, input.Height);
StreamWriter writer = null; //new StreamWriter("new.txt");
ColorImage inMem = new ColorImage(new UnsafeBitmap(input));
for (int i = 0; i < input.Height; i++)
{
for (int j = 0; j < input.Width; j++)
{
piece = inMem.Crop(j, i, s, s);
System.Drawing.Color topColor = inMem.GetColor(j, i);
m = Moment00(piece, topColor, writer);
pixVal = (255.0 * m / (piece.Width * piece.Height));
cImg.SetColor(j, i, Color.FromArgb((int)pixVal, (int)pixVal, (int)pixVal));
}
}
//img.Save("area.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
TimeSpan duration = DateTime.Now - start;
System.Console.WriteLine("Stroke area computed in " + duration.TotalMilliseconds + "ms");
return(cImg);
}