public Snakes(int[][] mat)
{
m_mat = mat;
m_width = mat.Length;
m_height = mat[0].Length;
m_curve = new SubpixelContour();
m_averageD = 0.0;
}
/// <summary>
/// foamliu, 2009/02/07, 从临界区提取一个轮廓.
///
/// </summary>
/// <param name="contour"></param>
private List <SubpixelContour> ExtractContourList()
{
List <SubpixelContour> contourList = new List <SubpixelContour>();
int frontX = lastX, frontY = lastY;
//int nextX, nextY;
SubpixelContour contour = new SubpixelContour();
//while ((FindNeighbor(frontX, frontY, NARROWBAND, out nextX, out nextY)))
//{
// // foamliu, 2009/02/07, 如果两点间距过大应分为不同的轮廓.
// if (Math.Abs(frontX - nextX) + Math.Abs(frontY - nextY) > 50)
// {
// if (contour.ControlPoints.Count > 0)
// contourList.Add(contour);
// contour = new SubpixelContour();
// }
// m_alive[nextX][nextY] = ALIVE;
// contour.ControlPoints.Add(new SubpixelPoint(nextX, nextY));
// frontX = nextX;
// frontY = nextY;
//}
contourList.Add(contour);
for (int y = 0; y < m_height; y++)
{
for (int x = 0; x < m_width; x++)
{
if (m_alive[x][y] == NARROWBAND)
{
contour.Add(new DoublePoint(x, y));
}
}
}
return(contourList);
}