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汪雪林; 刘忠轩; 彭思龙; WANGXue-lin; LIUZhong-xuan; PENGSi-long,
Source Publication中国图象图形学报,
AbstractAt low bit rate,the images encoded by mndard wavelet coders inevitably undergo the SO-called ringing phenomena n始r sharp edges.A low bit rate image compression algorithm based on edge adaptive wavelet transform is proposed.In the encoder,firstly the strong edges of锄image are detected and encoded勰side information.Then the wavelet transform is carried out in such a way that no filtering over previously detected edges is performed.Compression examples show that the edge adaptive wavelet transform achieves good reproduction ofsharp edges--even at very low bit rates.Because ofthe side information, the PSNR of the compressed images is typically slightly lower than that of standard coders, but the subjective vision impression is improved significantly.
Keyword图像压缩 小波变换 边缘自适应 低比特率 各向异性扩散
Document Type期刊论文
Corresponding Author汪雪林
Recommended Citation
GB/T 7714
汪雪林,刘忠轩,彭思龙,等. 基于边缘自适应小波变换的低比特率图像压缩算法[J]. 中国图象图形学报,,2005,10(2)(2005年02期):618-630.
APA 汪雪林,刘忠轩,彭思龙,WANGXue-lin,LIUZhong-xuan,&PENGSi-long,.(2005).基于边缘自适应小波变换的低比特率图像压缩算法.中国图象图形学报,,10(2)(2005年02期),618-630.
MLA 汪雪林,et al."基于边缘自适应小波变换的低比特率图像压缩算法".中国图象图形学报, 10(2).2005年02期(2005):618-630.
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