Fourier transforms
Hadamard matrices
History [of irreversible data compression]
Image averaging
JPEG compression
Orthogonal bases
Practical image compression
Sound compression
Walsh spectra
Walsh transforms
Wavelets
![History [of irreversible data compression]](/nks/notes/notes-10-6--history-of-irreversible-data-compression/thumb.png "History [of irreversible data compression]")
