/// <summary>
/// decomposes matrix and stores the results to user-provided matrices
/// </summary>
/// <param name="src"></param>
/// <param name="w"></param>
/// <param name="u"></param>
/// <param name="vt"></param>
/// <param name="flags"></param>
public static void Compute(InputArray src, OutputArray w,
OutputArray u, OutputArray vt, SVDFlag flags = SVDFlag.None)
{
if (src == null)
{
throw new ArgumentNullException(nameof(src));
}
if (w == null)
{
throw new ArgumentNullException(nameof(w));
}
if (u == null)
{
throw new ArgumentNullException(nameof(u));
}
if (vt == null)
{
throw new ArgumentNullException(nameof(vt));
}
src.ThrowIfDisposed();
w.ThrowIfNotReady();
u.ThrowIfNotReady();
vt.ThrowIfNotReady();
NativeMethods.core_SVD_static_compute(src.CvPtr, w.CvPtr, u.CvPtr, vt.CvPtr, (int)flags);
w.Fix();
u.Fix();
vt.Fix();
}
/// <summary>
/// the constructor that performs SVD
/// </summary>
/// <param name="src"></param>
/// <param name="flags"></param>
public SVD(InputArray src, SVDFlag flags = SVDFlag.None)
{
if (src == null)
throw new ArgumentNullException("src");
src.ThrowIfDisposed();
ptr = NativeMethods.core_SVD_new(src.CvPtr, (int)flags);
}
/// <summary>
/// the constructor that performs SVD
/// </summary>
/// <param name="src"></param>
/// <param name="flags"></param>
public SVD(InputArray src, SVDFlag flags = SVDFlag.None)
{
if (src == null)
{
throw new ArgumentNullException(nameof(src));
}
src.ThrowIfDisposed();
ptr = NativeMethods.core_SVD_new(src.CvPtr, (int)flags);
}
/// <summary>
/// the operator that performs SVD. The previously allocated SVD::u, SVD::w are SVD::vt are released.
/// </summary>
/// <param name="src"></param>
/// <param name="flags"></param>
/// <returns></returns>
public SVD Run(InputArray src, SVDFlag flags = SVDFlag.None)
{
if (disposed)
{
throw new ObjectDisposedException("SVD");
}
if (src == null)
{
throw new ArgumentNullException(nameof(src));
}
src.ThrowIfDisposed();
NativeMethods.core_SVD_operatorThis(ptr, src.CvPtr, (int)flags);
return(this);
}
/// <summary>
/// computes singular values of a matrix
/// </summary>
/// <param name="src"></param>
/// <param name="w"></param>
/// <param name="flags"></param>
public static void Compute(InputArray src, OutputArray w, SVDFlag flags = SVDFlag.None)
{
if (src == null)
{
throw new ArgumentNullException("src");
}
if (w == null)
{
throw new ArgumentNullException("w");
}
src.ThrowIfDisposed();
w.ThrowIfNotReady();
NativeMethods.core_SVD_static_compute(src.CvPtr, w.CvPtr, (int)flags);
w.Fix();
}
public static extern void cvSVD(IntPtr A, IntPtr W, IntPtr U, IntPtr V, SVDFlag flags);
public static extern void cvSVBkSb(IntPtr W, IntPtr U, IntPtr V, IntPtr B, IntPtr X, SVDFlag flags);
/// <summary>
/// computes SVD of src
/// </summary>
/// <param name="src"></param>
/// <param name="w"></param>
/// <param name="u"></param>
/// <param name="vt"></param>
/// <param name="flags"></param>
public static void SVDecomp(InputArray src, OutputArray w,
OutputArray u, OutputArray vt, SVDFlag flags = SVDFlag.None)
{
if (src == null)
throw new ArgumentNullException("src");
if (w == null)
throw new ArgumentNullException("w");
if (u == null)
throw new ArgumentNullException("u");
if (vt == null)
throw new ArgumentNullException("vt");
src.ThrowIfDisposed();
w.ThrowIfNotReady();
u.ThrowIfNotReady();
vt.ThrowIfNotReady();
NativeMethods.core_SVDecomp(src.CvPtr, w.CvPtr, u.CvPtr, vt.CvPtr, (int)flags);
w.Fix();
u.Fix();
vt.Fix();
}
/// <summary>
/// computes singular values of a matrix
/// </summary>
/// <param name="src"></param>
/// <param name="w"></param>
/// <param name="flags"></param>
public static void Compute(InputArray src, OutputArray w, SVDFlag flags = SVDFlag.None)
{
if (src == null)
throw new ArgumentNullException("src");
if (w == null)
throw new ArgumentNullException("w");
src.ThrowIfDisposed();
w.ThrowIfNotReady();
NativeMethods.core_SVD_static_compute(src.CvPtr, w.CvPtr, (int)flags);
w.Fix();
}
/// <summary>
/// the operator that performs SVD. The previously allocated SVD::u, SVD::w are SVD::vt are released.
/// </summary>
/// <param name="src"></param>
/// <param name="flags"></param>
/// <returns></returns>
public SVD Run(InputArray src, SVDFlag flags = SVDFlag.None)
{
if (disposed)
throw new ObjectDisposedException("SVD");
if (src == null)
throw new ArgumentNullException("src");
src.ThrowIfDisposed();
NativeMethods.core_SVD_operatorThis(ptr, src.CvPtr, (int)flags);
return this;
}
