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Development of simple orthogonal transforms for image compression

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2 Author(s)
Lo, K.T. ; Dept. of Electron. Eng., Hong Kong Polytech. Univ, Hung Hom, Hong Kong ; Cham, W.K.

A new family of orthogonal transform called dyadic transform (DT) is proposed for image compression by using the principle of dyadic symmetry. Two order-8 DTs are generated and their implementation is very simple in that it only requires operations of addition and binary shift. Performance evaluations using a statistical model and real images show that the performance of the proposed transforms is very close to that of DCT

Published in:

Vision, Image and Signal Processing, IEE Proceedings -  (Volume:142 ,  Issue: 1 )