Stationary Wavelet Transform

Stationary Wavelet Transform (SWT), also known as Undecimated wavelet transform or Algorithme à trous is a translation-invariance modification of the Discrete Wavelet Transform that does not decimate coefficients at every transformation level.

Multilevel 1D swt

Multilevel 2D swt2

Multilevel n-dimensional swtn

Maximum decomposition level - swt_max_level