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For image compression, the better compression rate can be achieved by vector quantization (VQ) scheme, but the quality of the recovered image is about 27 to 30 dB in PSNR, and the methods about quality improvement is limited, so how to improve the VQ decompressed image¡¦s quality is a worth studying issue. In this paper, a new approach of VQ encoding is proposed, that we transform each image into...
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