/// <summary>
/// Create a Matrix (only header is allocated) using the Pinned/Unmanaged <paramref name="data"/>. The <paramref name="data"/> is not freed by the disposed function of this class
/// </summary>
/// <param name="rows">The number of rows</param>
/// <param name="cols">The number of cols</param>
/// <param name="channels">The number of channels</param>
/// <param name="data">The Pinned/Unmanaged data, the data must not be release before the Matrix is Disposed</param>
/// <param name="step">The step (row stride in bytes)</param>
/// <remarks>The caller is responsible for allocating and freeing the block of memory specified by the data parameter, however, the memory should not be released until the related Matrix is released. </remarks>
public Matrix(int rows, int cols, int channels, IntPtr data, int step)
{
AllocateHeader();
CvInvoke.cvInitMatHeader(_ptr, rows, cols, CvInvoke.CV_MAKETYPE((int)Util.GetMatrixDepth(typeof(TDepth)), channels), data, step);
}
/// <summary>
/// Create a sparse matrix of the specific dimension
/// </summary>
/// <param name="dimension">The dimension of the sparse matrix</param>
public SparseMatrix(int[] dimension)
{
_dimension = new int[dimension.Length];
Array.Copy(dimension, _dimension, dimension.Length);
GCHandle handle = GCHandle.Alloc(_dimension, GCHandleType.Pinned);
_ptr = CvInvoke.cvCreateSparseMat(_dimension.Length, handle.AddrOfPinnedObject(), Util.GetMatrixDepth(typeof(TDepth)));
handle.Free();
}