A New Scalar Quantization Method for Digital Image Watermarking
نویسندگان
چکیده
منابع مشابه
A New Method for Digital Image Watermarking Based on Vector Quantization (vq)
Applying vector quantization (VQ) to an image delivers an index map. Dividing this index map into blocks results in each block using a limited number of codeword indices of the whole codebook (CB) while the rest of indices are unused. The proposed method exploits the unused indices to embed the watermark bits. The proposed watermark gives a high peak signal to noise ratio (PSNR) while keeping b...
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ژورنال
عنوان ژورنال: Journal of Electrical and Computer Engineering
سال: 2016
ISSN: 2090-0147,2090-0155
DOI: 10.1155/2016/9029745