| 灰度图像的子块压缩方法 |
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| 引用本文： | 李宏贵,李兴国.灰度图像的子块压缩方法[J].红外与激光工程,2002,31(5):390-394. |
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| 作者姓名： | 李宏贵 李兴国 |
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| 作者单位： | 1. 扬州大学理学院物理系,江苏,扬州,225002
2. 南京理工大学毫米波光波近感技术研究所,江苏,南京,210094 |
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| 摘 要： | 从灰度图像的局部几何特性出发，把图像中像素灰度相近或相同的区域当作一个整体处理，从而达到图像压缩的目的。计算机仿真实验表明，该方法可以获得产高的压缩比和峰值信噪比，有效地消除方块效应，很好地保持目标细节，具有较高的实用价值。
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| 关 键 词： | 灰度图像 子块 压缩方法 最大灰度差 图像压缩 |
| 文章编号： | 1007-2276(2002)05-0390-05 |
| 收稿时间： | 2001/12/28 |
| 修稿时间： | 2001年12月28 |
Compression method of sub-block for gray image |
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| LI Hong gui ,LI Xing guo.Compression method of sub-block for gray image[J].Infrared and Laser Engineering,2002,31(5):390-394. |
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| Authors: | LI Hong gui LI Xing guo |
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| Affiliation: | LI Hong gui 1,LI Xing guo 2 |
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| Abstract: | The local geometry property of gray image is studied, and the local region of an image in which pixels had similar or same gray value was took as an integer, and the aim of image compression was achieved. Computer simulation experiments showed that this method could obtain higher CR (compression rate) and higher PSNR (peak signal noise rate), remove the block effect satisfactorily, keep target details effectively, and had higher practical value. |
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| Keywords: | Sub block Original sub block Integral sub block Maximum difference of gray value Gray image Image compression |
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