| 减少JPEG压缩图象方块效应的小波域图象增强 |
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| 引用本文： | 袁江,蔡汉添.减少JPEG压缩图象方块效应的小波域图象增强[J].计算机工程与科学,1999(4). |
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| 作者姓名： | 袁江 蔡汉添 |
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| 作者单位： | 华南理工大学电子与通信工程系 |
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| 摘 要： | 低比特率ＪＰＥＧ压缩图象往往产生严重的方块效应。利用小波分析良好的去噪和边缘检测特性，本文提出一种减少ＪＰＥＧ压缩图象中方块效应的有效算法。计算机仿真结果表明，所提算法能有效地改善解码图象的视觉质量。
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| 关 键 词： | 图象压缩，后处理，图象增强，小波变换 |
Enhancement Based on Wavelet for Deblocking of JPEG Compressed Images |
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| Yuan Jiang,and,Cai Hantian.Enhancement Based on Wavelet for Deblocking of JPEG Compressed Images[J].Computer Engineering & Science,1999(4). |
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| Authors: | Yuan Jiang and Cai Hantian |
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| Abstract: | Low bit rate JPEG compressed images usually demonstrate serious blocking effects.In this paper we introduce an effective algorithm for the deblocking of the JPEG compressed images based on the denoising and edge detection in wavelet domain.The result of computer simulation shows that this algorithm can achieve efficient PSNR improvement and gets satisfactory visual quality of the image. |
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| Keywords: | image compression postprocessing image enhancement wavelet transform |
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