Sunset: a hardware-oriented algorithm for lossless compression of gray-scale images

Author(s):  
Glen G. Langdon, Jr.
1996 ◽  
Vol 5 (4) ◽  
pp. 575-586 ◽  
Author(s):  
M.J. Weinberger ◽  
J.J. Rissanen ◽  
R.B. Arps

2005 ◽  
Vol 16 (06) ◽  
pp. 1111-1119 ◽  
Author(s):  
LUIGI CINQUE ◽  
SERGIO DE AGOSTINO ◽  
FRANCO LIBERATI ◽  
BART WESTGEEST

In this paper, we show a simple lossless compression heuristic for gray scale images. The main advantage of this approach is that it provides a highly parallelizable compressor and decompressor. In fact, it can be applied independently to each block of 8×8 pixels, achieving 80 percent of the compression obtained with LOCO-I (JPEG-LS), the current lossless standard in low-complexity applications. The compressed form of each block employs a header and a fixed length code, and the sequential implementations of the encoder and decoder are 50 to 60 percent faster than LOCO-I.


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