Title :
Near lossless image compression using lossless Hartley like transform
Author :
Meher, P.K. ; Srikanthan, T. ; Gupta, Jitesh ; Agarwal, Harsh Kumar
Author_Institution :
Centre for High Performance Embedded Syst., Nanyang Technol. Univ., Singapore
Abstract :
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.
Keywords :
data compression; discrete Hartley transforms; image coding; transform coding; discrete Hartley transform; integer-to-integer transformation; lossless image compression; wavelet-based filter bank; Discrete cosine transforms; Discrete transforms; Discrete wavelet transforms; Embedded system; Filter bank; Image coding; Image reconstruction; Performance loss; Pixel; Pulse modulation;
Conference_Titel :
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
Print_ISBN :
0-7803-8185-8
DOI :
10.1109/ICICS.2003.1292445
