Piros, Sandor J., and Peter Korondi. “Practical Implementation of Second Generation Wavelet Transformation on 2D Images by Transformation Matrixes”. Recent Innovations in Mechatronics, vol. 2, no. 1-2., Apr. 2015, pp. 1-6., https://doi.org/10.17667/riim.2015.1-2/16.