/// <summary>
/// Draws ellipse.
/// </summary>
/// <param name="image">Input image.</param>
/// <param name="ellipse">Ellipse.</param>
/// <param name="color">Object's color.</param>
/// <param name="thickness">Border thickness (-1 to fill the object).</param>
/// <param name="opacity">Sets alpha channel where 0 is transparent and 255 is full opaque.</param>
public unsafe static void Draw(this Bgr <byte>[,] image, Ellipse ellipse, Bgr <byte> color, int thickness, byte opacity = Byte.MaxValue)
{
draw(image, opacity, cvImg =>
{
CvCoreInvoke.cvEllipse(&cvImg, ellipse.Center.Round(), Size.Round(ellipse.Size), ellipse.Angle,
0, 360, color.ToCvScalar(), thickness, LineTypes.EightConnected, 0);
});
}
/// <summary>
/// Draws ellipse.
/// </summary>
/// <param name="image">Input image.</param>
/// <param name="ellipse">Ellipse.</param>
/// <param name="color">Object's color.</param>
/// <param name="thickness">Border thickness.</param>
public unsafe static void Draw(this Bgr <byte>[,] image, Ellipse ellipse, Bgr <byte> color, int thickness)
{
using (var img = image.Lock())
{
var iplImage = img.AsCvIplImage();
CvCoreInvoke.cvEllipse(&iplImage, ellipse.Center.Round(), Size.Round(ellipse.Size), ellipse.Angle,
0, 2 * System.Math.PI, color.ToCvScalar(), thickness, LineTypes.EightConnected, 0);
}
}