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Near lossless image compression using lossless Hartley like transform

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4 Author(s)
Meher, P.K. ; Centre for High Performance Embedded Syst., Nanyang Technol. Univ., Singapore ; Srikanthan, T. ; Gupta, J. ; Agarwal, H.K.

It is shown that the discrete Hartley transform (DHT) of length N = 4 can be used to perform an integer-to-integer transformation. This behavior of the DHT can be used to compute a 2-D separable lossless Hartley like transform (L-HLT). The performance of the L-HLT is found to be better than the DCT for near lossless image compression and wavelet-based filter bank approach for lossless compression.

Published in:

Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on  (Volume:1 )

Date of Conference:

15-18 Dec. 2003