這里是一個以8*8的圖來作為測試的,測試也是按照1層DWT變化得到的；作者是在實際調(diào)試過程中記錄下這些數(shù)據(jù)也說明了一個小波變化的真實過程。
下面是分析過程：
Input data after signed and YCC is:
?
Even???????????????????????????????????????????????? Odd
Line 0:
D8 ff e6 ff e6 ff eb ff---e1 ff e6 ff e9 ff ed ff
Line 1:
D8 ff dd ff 06 00 06 00---dd ff f7 ff 06 00 06 00
Line 2:
D3 ff dd ff 7f 00 7f 00---d8 ff f7 ff 7f 00 7f 00
?
After vertical lift:
Even????????????? ?????????? Odd
Line 1:
03 00 fc ff d4 ff d1 ff---01 00 09 00 d2 ff d0 ff
Line 0:
d9 ff e5 ff db ff df ff---e1 ff e8 ff de ff e1 ff
?
After horizontal lift:
Even??????????????????????? Odd
Line 0:
Da ff e8 ff dd ff e0 ff---02 00 08 00 01 00 02 00
Push even into LL, and push odd into HL
?
Input new line:
Even??????????????????????? Odd
Line 3:
D3 ff dd ff 7f 00 79 00---d8 ff f7 ff 79 00 79 00
Input new line:
Even??????????????????????? Odd
Line 4:
D1 ff e1 ff 7f 00 79 00---d6 ff f7 ff 79 00 e6 ff
?
Do Vertical lift:
Even ?????????????????????? Odd
Line 3:
01 00 fe ff 00 00 fd ff---01 00 00 00 fd ff 47 00
Do Vertical lift:
Line 2:
d4 ff dc ff 74 00 73 00---d9 ff f9 ff 73 00 85 00
?
Do horizontal lift:
Line 2:
Even??????????????????????? Odd
d5 ff d1 ff 68 00 78 00---01 00 d1 ff 00 00 12 00
push even into LL and push odd into HL
line 1:
04 00 05 00 dc ff d1 ff---02 00 21 00 00 00 ff ff
?
?
Input new line:
Even??????????????????????? Odd
Line 5:
D1 ff e1 ff e6 ff e6 ff---d9 ff a0 ff e6 ff e6 ff
New line:
Even??????????????????????? Odd
Line 6:
D6 ff a0 ff 3f 00 d9 ff---dc ff 0c 00 d9 ff 58 00
?
Do vertical lift:
Even??????????????????????? Odd
Line 5:
fe ff 21 00 87 ff bd ff---00 00 9f ff bd ff c7 ff
Do Vertical lift:
Line 4:
d1 ff e9 ff 61 00 68 00---d6 ff df ff 68 00 ea ff
?
Do Horizontal lift:
Even??????????????????????? Odd
Line 4
ce ff d6 ff 51 00 4a 00---f9 ff ba ff 04 00 82 ff
push into even into LL and push Odd into HL
Line 3:
02 00 ff ff 00 00 0f 00---02 00 01 00 ff ff 4a 00
Push even into LH and push odd into HH
?
Input new line:
Line 7:
d7 ff 0c 00 e6 ff 79 00---a0 ff 65 00 79 00 d9 ff
?
Do vertical lift:
Line 7:
05 00 51 00 9e ff 68 00---b6 ff 82 00 8b 00 ec ff
?
Do vertical lift:
Line 6:
d7 ff bd ff 08 00 e2 ff---ca ff 14 00 eb ff 45 00
?
Do horizontal lift:
Line 6:
d7 ff ca ff 12 00 f8 ff---00 00 32 00 f6 ff 63 00
Line 5:
f7 ff 10 00 81 ff c6 ff---f1 ff cb ff 1b 00 0a 00
Line 7:
cb ff 57 00 e3 ff 6b 00---8b ff 8b 00 88 00 84 ff
下面是綜合的過程部分：
Do horizontal lift:
Pull line 0:
Even ????????????????????????????????
Da ff e8 ff dd ff e0 ff---02 00 08 00 01 00 02 00
?
After horizontal lift:
Line 0:
d9 ff e5 ff db ff df ff---e1 ff e8 ff de ff e1 ff
?
Pull line 1:
04 00 05 00 dc ff d1 ff---02 00 21 00 00 00 ff ff
After horizontal lift:
Line 1:
03 00 fc ff d4 ff d1 ff---01 00 09 00 d2 ff d0 ff
?
After vertical lift:
Line 0:
d8 ff e6 ff e6 ff eb ff--- e1 ff e6 ff e9 ff ed ff
?
Pull Line:
Line 2:
d5 ff d1 ff 68 00 78 00---01 00 d1 ff 00 00 12 00
After horizontal lift:
Line 2:
d4 ff dc ff 74 00 73 00--- d9 ff f9 ff 73 00 85 00
?
?
Pull line 3:
02 00 ff ff 00 00 0f 00--- 02 00 01 00 ff ff 4a 00
After horizontal lift:
Line 3:
01 00 fe ff 00 00 fd ff--- 01 00 00 00 fd ff 47 00
?
After vertical lift:
Line 2:
d3 ff dd ff 7f 00 7f 00--- d8 ff f7 ff 7f 00 7f 00
?
Line 1:
d8 ff dd ff 06 00 06 00--- dd ff f7 ff 06 00 06 00
?
Line 0 output:
d8 ff e1 ff e6 ff e6 ff e6 ff e9 ff eb ff ed ff