摘要: In this paper, an edge-based wavelet transform is proposed for image compression. the encoder, first dominant edges of are detected and coded as side information. Then, (WT) carried out in such a way that no filtering over previously performed. Compression examples show WT achieves good reproduction sharp even at very low bit rates. Because additional information, PSNR typically slightly lower than standard coders. On other hand, picture quality scale, objective measure better reflects subjective impression, shows superior results coder.
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