CN1276391C - 基于小波变换的图像压缩方法 - Google Patents
基于小波变换的图像压缩方法 Download PDFInfo
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- CN1276391C CN1276391C CN 200410023324 CN200410023324A CN1276391C CN 1276391 C CN1276391 C CN 1276391C CN 200410023324 CN200410023324 CN 200410023324 CN 200410023324 A CN200410023324 A CN 200410023324A CN 1276391 C CN1276391 C CN 1276391C
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- 238000000034 method Methods 0.000 title claims abstract description 58
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- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000007670 refining Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 101000888552 Xenopus laevis CLIP-associating protein 1-B Proteins 0.000 description 2
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- 241001504519 Papio ursinus Species 0.000 description 1
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- 235000016761 Piper aduncum Nutrition 0.000 description 1
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- 244000203593 Piper nigrum Species 0.000 description 1
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Images
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- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Abstract
Description
-2 | -1 | 0 | 1 | 2 | |
-2 | 1 | 2 | 4 | 2 | 1 |
-1 | 4 | 8 | 16 | 8 | 4 |
0 | 8 | 32 | X | 32 | 8 |
1 | 4 | 8 | 16 | 8 | 4 |
2 | 1 | 2 | 4 | 2 | 1 |
-2 | -1 | 0 | 1 | 2 | |
-2 | 2 | 2 | 2 | 2 | 2 |
-1 | 2 | 16 | 16 | 16 | 2 |
0 | 2 | 16 | X | 16 | 2 |
1 | 2 | 16 | 16 | 16 | 2 |
2 | 2 | 2 | 2 | 2 | 2 |
权值 | >=72 | [48,71] | [24,47] | [16,23] | [8,15] | [0,7] |
分类 | 5 | 4 | 3 | 2 | 1 | 0 |
水平贡献 | 垂直贡献 | 分类号 | XORbit |
1 | 1 | 10 | 0 |
1 | 0 | 9 | 0 |
1 | -1 | 8 | 0 |
0 | 1 | 7 | 0 |
0 | 0 | 6 | 0 |
0 | -1 | 7 | 1 |
-1 | 1 | 8 | 1 |
-1 | 0 | 9 | 1 |
-1 | -1 | 10 | 1 |
序号 | 使用者 | 分类数 | 分类号 | 算术熵编码器的初始状态(index,MPS) |
1 | 显著性分类 | 6 | 0..5 | 其中0号使用(4,0),1号使用(3,0),其他使用(0,0) |
2 | 小波系数符号 | 5 | 6..10 | (0,0) |
3 | 细化 | 1 | 11 | (0,0) |
4 | 通用输出 | 1 | 12 | (46,0) |
合计 | ---------- | 13 | --- |
图像名 | 本发明大小(字节) | 本发明PSNR(dB) | JPEG2000大小(字节) | JPEG2000PSNR(dB) |
Lena | 8011 | 34.01 | 8012 | 33.95 |
Barbara | 11079 | 29.86 | 11075 | 29.88 |
baboon | 14977 | 25.28 | 14949 | 25.14 |
girl512 | 6967 | 34.99 | 6968 | 34.88 |
pepper | 7789 | 33.92 | 7787 | 33.98 |
Jet | 8907 | 32.78 | 8885 | 32.76 |
couple | 6863 | 38.97 | 6836 | 39.06 |
woman | 170689 | 30.18 | 170721 | 30.14 |
bike | 195401 | 30.33 | 195389 | 30.42 |
cafe | 312045 | 26.46 | 312069 | 26.35 |
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200410023324 CN1276391C (zh) | 2004-06-18 | 2004-06-18 | 基于小波变换的图像压缩方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410023324 CN1276391C (zh) | 2004-06-18 | 2004-06-18 | 基于小波变换的图像压缩方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1595453A CN1595453A (zh) | 2005-03-16 |
CN1276391C true CN1276391C (zh) | 2006-09-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 200410023324 Expired - Fee Related CN1276391C (zh) | 2004-06-18 | 2004-06-18 | 基于小波变换的图像压缩方法 |
Country Status (1)
Country | Link |
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CN (1) | CN1276391C (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100409693C (zh) * | 2006-07-13 | 2008-08-06 | 王国秋 | 用于图像和视频压缩的正交变换方法 |
CN101079635B (zh) * | 2007-05-24 | 2011-10-05 | 北京邮电大学 | 联合标量量化方法以及自适应调整标量量化电平的方法 |
CN102158701B (zh) * | 2011-04-19 | 2012-07-25 | 湖南大学 | 一种基于压缩感知理论的分类量化图像编码方法 |
CN102316324B (zh) * | 2011-08-24 | 2013-08-21 | 北京航空航天大学 | 一种基于局部最小熵的图像编码预测方法 |
FR3022064A1 (fr) * | 2014-06-04 | 2015-12-11 | I Ces Innovative Compression Engineering Solutions | Precision adaptative et quantification d'une matrice transformee par ondelettes |
-
2004
- 2004-06-18 CN CN 200410023324 patent/CN1276391C/zh not_active Expired - Fee Related
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Publication number | Publication date |
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CN1595453A (zh) | 2005-03-16 |
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