| private cvGetPerspectiveTransform ( IntPtr src, IntPtr dst, IntPtr mapMatrix ) : IntPtr | ||
| src | IntPtr | |
| dst | IntPtr | |
| mapMatrix | IntPtr | |
| Результат | IntPtr | |
/// <summary>
/// calculates matrix of perspective transform such that:
/// (t_i x'_i,t_i y'_i,t_i)^T=map_matrix (x_i,y_i,1)^T
/// where dst(i)=(x'_i,y'_i), src(i)=(x_i,y_i), i=0..3.
/// </summary>
/// <param name="src">Coordinates of 4 quadrangle vertices in the source image</param>
/// <param name="dest">Coordinates of the 4 corresponding quadrangle vertices in the destination image</param>
/// <returns>The 3x3 Homography matrix</returns>
public static HomographyMatrix GetPerspectiveTransform(PointF[] src, PointF[] dest)
{
Debug.Assert(src.Length >= 4, "The source should contain at least 4 points");
Debug.Assert(dest.Length >= 4, "The destination should contain at least 4 points");
HomographyMatrix rot = new HomographyMatrix();
CvInvoke.cvGetPerspectiveTransform(src, dest, rot);
return(rot);
}
