/// <summary>
/// Generate one level of inverse of MallatDecomposition
/// </summary>
/// <param name="currentSize">Size of area</param>
/// <param name="predecessors">4 predecessors</param>
/// <returns></returns>
private Node <T> GenerateLevel(Size currentSize, params Node <T>[] predecessors)
{
var flipper11 = new ImageDiagonalFlipper <T>(currentSize, predecessors[0]);
var flipper12 = new ImageDiagonalFlipper <T>(currentSize, predecessors[1]);
var flipper13 = new ImageDiagonalFlipper <T>(currentSize, predecessors[2]);
var flipper14 = new ImageDiagonalFlipper <T>(currentSize, predecessors[3]);
var wavelet11 = instancer.New(flipper11, flipper12);
var wavelet12 = instancer.New(flipper13, flipper14);
currentSize.Width *= 2;
var flipper21 = new ImageDiagonalFlipper <T>(currentSize, wavelet11);
var flipper22 = new ImageDiagonalFlipper <T>(currentSize, wavelet12);
var wavelet21 = instancer.New(flipper21, flipper22);
return(wavelet21);
}
/// <summary>
/// Build new level of decomposition
/// </summary>
/// <param name="currentSize">Curent size of image</param>
/// <param name="predecesor">Input node</param>
/// <returns>List of output nodes</returns>
private Node <T>[] GenerateLevel(Size currentSize, Node <T> predecesor)
{
var wavelet11 = instancer.New(predecesor);
currentSize.Width /= 2;
var flipper11 = new ImageDiagonalFlipper <T>(currentSize, wavelet11[0]);
var flipper12 = new ImageDiagonalFlipper <T>(currentSize, wavelet11[1]);
var wavelet21 = instancer.New(flipper11);
var wavelet22 = instancer.New(flipper12);
currentSize.Height /= 2;
var flipper21 = new ImageDiagonalFlipper <T>(currentSize, wavelet21[0]);
var flipper22 = new ImageDiagonalFlipper <T>(currentSize, wavelet21[1]);
var flipper23 = new ImageDiagonalFlipper <T>(currentSize, wavelet22[0]);
var flipper24 = new ImageDiagonalFlipper <T>(currentSize, wavelet22[1]);
return(new[] { flipper21, flipper22, flipper23, flipper24 });
}