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DWT分析和综合实际过程

这里是一个以8*8的图来作为测试的,测试也是按照1层DWT变化得到的;作者是在实际调试过程中记录下这些数据也说明了一个小波变化的真实过程。

下面是分析过程:

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

下面是综合的过程部分:

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

posted on 2007-02-28 22:08 笨笨 阅读(612) 评论(0)  编辑 收藏 引用


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