Walsh-Hadamard and Discrete Cosine Transform and Discrete Cosine Transform
Rumen P. Mironov
International Journal of Computational Linguistics Research, Vol. 13, No. 1, 2022.
DOI: https://doi.org/10.6025/jcl/2022/13/1/9-14
Link: https://www.dline.info/jcl/fulltext/v13n1/jclv13n1_2.pdf
Abstract:
A comparison of the developed complex Hadamard transform with the well-known unitary (orthogonal) transforms of Karhunen-Loeve, Fourier, Walsh-Hadamard and discrete cosine transform is presented. The comparison is made on the base of minimization of mean-squared error of reconstructed transform coefficients for two test images.