Table 1 Comparison of LZW and BPE performance

                12 bit     14 bit     Default    Small      Fast
                LZW        LZW        BPE        BPE        BPE
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Original file
 size (bytes)   544,789    544,789    544,789    544,789    544,789
Compressed file
 size (bytes)   299,118    292,588    276,955    293,520    295,729
Compression time
 (secs)              28         28         55         41         30
Expansion time
 (secs)              27         25         20         21         19
Compression data
 size (bytes)    25,100     90,200     17,800      4,400     17,800
Expansion data
 size (bytes)    20,000     72,200        550        550        550