/// <summary>
/// foamliu, 2009/02/04, 腐蚀.
///
/// </summary>
/// <param name="mat">二值图像</param>
/// <param name="b">结构元素</param>
public static void Erosion(int[][] mat, StructuringElement strel, out int[][] output)
{
//int width = mat.Length;
//int height = mat[0].Length;
//output = new int[width][];
//for (int i = 0; i < width; i++)
//{
// output[i] = new int[height];
//}
//int m = b.Width;
//int n = b.height;
//for (int y = 0; y < height; y++)
//{
// for (int x = 0; x < width; x++)
// {
// if (mat[x][y] != 1)
// continue;
// for (int j = -n; j <= n; j++)
// {
// for (int i = -m; i <= m; i++)
// {
// if (b.B(i, j) == 0)
// continue;
// if (Util.GetPixel(mat,x + i,y + j) == 0)
// goto next;
// }
// }
// output[x][y] = 1;
// next: ;
// }
//}
// foamliu, 2009/02/06, 改用二值图像库中的算法.
//
// 先把 strel 求转置
//
StructuringElement trans = StructuringElement.Transposition(strel);
BinaryImageLib.MinkowskiSubtraction(mat, trans, out output);
}
/// <summary>
/// foamliu, 2009/02/04, 灰度值腐蚀.
///
/// </summary>
/// <param name="mat">灰度图像</param>
/// <param name="b">结构元素</param>
public static void Erosion(int[][] mat, StructuringElement strel, out int[][] output)
{
//int width = mat.Length;
//int height = mat[0].Length;
//output = new int[width][];
//for (int i = 0; i < width; i++)
//{
// output[i] = new int[height];
//}
//int m = b.Length;
//int n = b[0].Length;
//for (int y = 0; y < height; y++)
//{
// for (int x = 0; x < width; x++)
// {
// int min = int.MaxValue;
// for (int j = 0; j < n; j++)
// {
// for (int i = 0; i < m; i++)
// {
// int matxy = Util.GetPixel(mat, x - i, y - j);
// if (matxy + b[i][j] < min)
// {
// min = matxy + b[i][j];
// }
// }
// }
// output[x][y] = min;
// }
//}
// foamliu, 2009/02/06, 改用二值图像库中的算法.
//
// 先把 strel 求转置
//
StructuringElement trans = StructuringElement.Transposition(strel);
GrayScaleImageLib.MinkowskiSubtraction(mat, trans, out output);
}