public static void binary_or(Bytearray image, Bytearray image2, int dx, int dy)
{
int w = image.Dim(0);
int h = image.Dim(1);
for (int i = 0; i < w; i++)
{
for (int j = 0; j < h; j++)
{
image[i, j] = Math.Max(image[i, j], NarrayUtil.Ext(image2, i - dx, j - dy));
}
}
}
