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1
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0.8
0.8
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0.6
0.4
0.4
0.2
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Low pass C30
2
3
-3
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C30 Scaling or father function
C30 Wavelet or mother function
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3
3
3
3
2 1
(1,1) (2,2)
2
(3,2)
(2,1)
(3,1)
Subband index: (frequency, level)
P
2
3
4
5
1
(6,3) (7,3)
6
2
1
1
Decomposition level of each subband
8
7
9
10
Depth-first search encounter order
é å ! %$² ! 6! 7 A ³ ³ 7 ³ 6³
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Scanned image
Divide into (smooth) BxB blocks
Encode basis choice
Find best basis DCT (I or IV)
For B= ...8, 16,32,...
M e m o r y
X
Quantize transform values
Combine data streams and remove redundancy
Storage
Adapted block discrete/local cosine transform
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