imgCIF / CBF COMPRESSION

Compression Times on a HP715 50MHz Workstation

IMAGE	TIME	COMPRESSION ALGORITHM
		NONE	BYTE	HUFFMAN
			OFFSET	PREDICTORS
				1	2	3	4
ztly01.pmi	Elapse	0.87	0.71	3.24	3.25	4.25	3.60
	CPU	0.33	0.69	3.16	3.25	4.22	3.58
olivine.image	Elapse	2.85	3.22	16.1	16.2	20.3	17.7
	CPU	1.40	2.95	16.0	16.1	20.1	17.6

Compression Times on a Dell Pentium II 266MHz PC

IMAGE	TIME	COMPRESSION ALGORITHM
		NONE	BYTE	HUFFMAN
			OFFSET	PREDICTORS
				1	2	3	4
ztly01.pmi	Elapse	0.067*	0.10	0.80	0.76	1.14	0.86
	CPU	0.062	0.096	0.78	0.76	1.13	0.86
olivine.image	Elapse	1.05	0.59	4.01	3.91	5.40	4.38
	CPU	0.37	0.49	3.96	3.88	5.38	4.34

* This is unexpectedly fast, perhaps owing to disk caching.