/// <summary> /// Computes the center moments for the specified image. /// </summary> /// /// <param name="image">The image whose moments should be computed.</param> /// <param name="area">The region of interest in the image to compute moments for.</param> /// public override void Compute(float[,] image, Rectangle area) { RawMoments raw = new RawMoments(image, area, Order); CentralMoments center = new CentralMoments(raw); this.Compute(center); }
/// <summary> /// Computes the center moments from the specified raw moments. /// </summary> /// /// <param name="moments">The raw moments to use as base of calculations.</param> /// public void Compute(RawMoments moments) { float x = moments.CenterX; float y = moments.CenterY; Mu00 = moments.M00; Mu01 = Mu10 = 0; Mu11 = moments.M11 - moments.M01 * x; Mu20 = moments.M20 - moments.M10 * x; Mu02 = moments.M02 - moments.M01 * y; Mu21 = moments.M21 - 2 * x * moments.M11 - y * moments.M20 + 2 * x * x * moments.M01; Mu12 = moments.M12 - 2 * y * moments.M11 - x * moments.M02 + 2 * y * y * moments.M10; Mu30 = moments.M30 - 3 * x * moments.M20 + 2 * x * x * moments.M10; Mu03 = moments.M03 - 3 * y * moments.M02 + 2 * y * y * moments.M01; invM00 = moments.InvM00; }
/// <summary> /// Initializes a new instance of the <see cref="CentralMoments"/> class. /// </summary> /// /// <param name="moments">The raw moments to construct central moments.</param> /// public CentralMoments(RawMoments moments) : base(moments.Order) { Compute(moments); }