Significance

• if 2-k < |B[i,j]| then B[i,j] is significant in bit plane k.

• If B[i,j] is insignificant in bit plane k then |B[i,j]| < 2-k

• The sign of B[i,j] must be output before B[i,j] becomes significant.

-.101

.010

.110

-.001

B

1

0

1

0

0

1

1

0

1

0

0

1

bit plane 1

bit plane 2

bit plane 3

-

+

+

-

sign plane

significant

becomes significant

B(*,*,1)

B(*,*,2)

B(*,*,3)

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