Figure 6

Figure 6

Detail, 7 mm transaxial slice CT scan of abdomen shown in Figure 2.

Progressive compression using wavelet transform. Artifactual smoothing of liver parenchyma is subtly present at a compression ratio of 10:1 and more prominently visualize at higher compression ratios.

   

   
   
A:  Original image, losslessly compressed.     
   
   
B:  Q = 100,    compression ratio = 1.6:1.
   
   
C:  Q =  89,    compression ratio =  10:1.
   
   
D:  Q =  88,    compression ratio =  16:1.
   
   
E:  Q =  85,    compression ratio =  28:1.
   
   
F:  Q =  80,    compression ratio =  45:1.
   
   

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