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；作者是在實際調試過程中記錄下這些數據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