/// <summary>
/// Inverses a matrix.
/// </summary>
/// <param name="method"></param>
/// <returns></returns>
public MatExpr Inv(DecompTypes method = DecompTypes.LU)
{
ThrowIfDisposed();
NativeMethods.HandleException(
NativeMethods.core_MatExpr_inv(ptr, (int)method, out var ret));
GC.KeepAlive(this);
var retVal = new MatExpr(ret);
return(retVal);
}
/// <summary>
///
/// </summary>
/// <param name="method"></param>
/// <returns></returns>
public MatExpr Inv(DecompTypes method = DecompTypes.LU)
{
ThrowIfDisposed();
try
{
IntPtr retPtr = NativeMethods.core_MatExpr_inv(ptr, (int)method);
MatExpr retVal = new MatExpr(retPtr);
return(retVal);
}
catch (BadImageFormatException ex)
{
throw PInvokeHelper.CreateException(ex);
}
}
/// <summary>
/// solves linear system or a least-square problem
/// </summary>
/// <param name="src1"></param>
/// <param name="src2"></param>
/// <param name="dst"></param>
/// <param name="flags"></param>
/// <returns></returns>
public static bool Solve(InputArray src1, InputArray src2, OutputArray dst,
DecompTypes flags = DecompTypes.LU)
{
if (src1 == null)
throw new ArgumentNullException("src1");
if (src2 == null)
throw new ArgumentNullException("src2");
if (dst == null)
throw new ArgumentNullException("dst");
src1.ThrowIfDisposed();
src2.ThrowIfDisposed();
dst.ThrowIfNotReady();
int ret = NativeMethods.core_solve(src1.CvPtr, src2.CvPtr, dst.CvPtr, (int)flags);
GC.KeepAlive(src1);
GC.KeepAlive(src2);
dst.Fix();
return ret != 0;
}
/// <summary>
/// computes inverse or pseudo-inverse matrix
/// </summary>
/// <param name="src">The source floating-point MxN matrix</param>
/// <param name="dst">The destination matrix; will have NxM size and the same type as src</param>
/// <param name="flags">The inversion method</param>
/// <returns></returns>
public static double Invert(InputArray src, OutputArray dst,
DecompTypes flags = DecompTypes.LU)
{
if (src == null)
throw new ArgumentNullException("src");
if (dst == null)
throw new ArgumentNullException("dst");
src.ThrowIfDisposed();
dst.ThrowIfNotReady();
double ret = NativeMethods.core_invert(src.CvPtr, dst.CvPtr, (int)flags);
GC.KeepAlive(src);
dst.Fix();
return ret;
}
/// <summary>
///
/// </summary>
/// <param name="method"></param>
/// <returns></returns>
public MatExpr Inv(DecompTypes method = DecompTypes.LU)
{
ThrowIfDisposed();
try
{
IntPtr retPtr = NativeMethods.core_MatExpr_inv(ptr, (int)method);
MatExpr retVal = new MatExpr(retPtr);
return retVal;
}
catch (BadImageFormatException ex)
{
throw PInvokeHelper.CreateException(ex);
}
}
