A Discrete Fourier Transform (DFT), a Fast Wavelet Transform (FWT), and a Wavelet Packet Transform (WPT) algorithm in 1-D, 2-D, and 3-D using normalized orthogonal (orthonormal) Haar, Coiflet, Daubechie, Legendre and normalized biorthognal wavelets in Java.

mathematics design-patterns hilbert software-engineering wavelet frequency-domain frequency-analysis wavelet-tree wavelet-packets hilbert-spaces wavelet-toolbox orthogonal wavelet-analysis wavelet-decomposition hilbert-transform wavelet-transform wavelet-compression orthogonal-transforms wavelet-transform-algorithm orthonormal

• Updated Nov 22, 2025
• Java