public void SetForeground(Tree node, Bitmap image, Bitmap foreground) {
Ptype ptype = (Ptype)node["ptype"];
Region interiorregion = ptype.Region("interior");
foreground.WriteBlock(Utils.BACKGROUND, node);
if (interiorregion != null)
{
IBoundingBox interior = GetInteriorBox(node, ptype);
int top = interior.Top;
int left = interior.Left;
int leftdepth = ptype.Region("left").Bitmap.Width;
int bottom = interior.Top + interior.Height;
int right = interior.Left + interior.Width;
for(int row = top; row < bottom; row++)
{
for (int col = left; col < right; col++)
{
int backgroundValue = interiorregion.Bitmap[(row - top) % interiorregion.Bitmap.Height,
(col - node.Left - leftdepth) % interiorregion.Bitmap.Width];
if (backgroundValue != image[row, col])
foreground[row, col] = node.GetHashCode();
}
}
//We looked at the features and might have counted them as foreground.
EraseFeaturesFromforeground(foreground, node, ptype);
}
}
public void SetForeground(Tree node, Bitmap image, Bitmap foreground)
{
foreground.WriteBlock(Utils.BACKGROUND, node);
}