| 一种新的无损小波图像压缩算法 |
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| 引用本文： | 刘传才.一种新的无损小波图像压缩算法[J].小型微型计算机系统,2003,24(3):474-479. |
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| 作者姓名： | 刘传才 |
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| 作者单位： | 福州大学,计算机系,福建,福州,350002 |
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| 基金项目： | 国家“973”资助项目 (G19980 3 0 60 0 )资助，福建省自然科学基金项目 (F0 0 0 13 )资助，福建省教育厅科研项目 (K990 2 7)资助 |
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| 摘 要： | 基于Daubechies 5-3旋转小波，本文提出了一种无损图像压缩新算法，这一工作证实了小波压缩的如下问题，小波压缩具有与JPEG那样快的运行速度，在不改变变换系数的条件下，采用序贯处理方法能急剧地减小存储器的需要量，能用小波实现图像的无损压缩，对比实验表明，这种快速，有效的无损图像压缩技术比标准的JBIG和无损的JPEG性能要优越。
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| 关 键 词： | 无损小波图像压缩算法 图像编码 图像处理 JPEG 无损压缩 小波变换 位平面编码 序贯变换 |
| 文章编号： | 1000-1220(2003)03-0474-06 |
A New Lossless Wavelet Algorithm for Image Compression |
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| LIU,Chuan,cai.A New Lossless Wavelet Algorithm for Image Compression[J].Mini-micro Systems,2003,24(3):474-479. |
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| Authors: | LIU Chuan cai |
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| Abstract: | Based on the Daubechies 5 3 rational wavelet, this paper presents a new lossless wavelet algorithm for image compression. This work manages to demonstrate the following problems about wavelet compression: wavelet compression can run just as fast as JPEG; memory requirements can be drastically reduced by using sequential processing with no change in the transform coefficients; a lossless image compression could be implemented with Daubechies 5 3 wavelet. It is found that the performance of the proposed lossless wavelet algorithm for image compression is better than that of the international standard algorithms known as JBIG and lossless JPEG. |
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| Keywords: | lossless compression wavelet transform bit plane coding sequential transform |
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