Articles with "frequency sub" as a keyword



HVS-based scalable image watermarking

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Published in 2018 at "Multimedia Tools and Applications"

DOI: 10.1007/s11042-018-6419-1

Abstract: This paper proposes a novel human vision system based, spread spectrum method to scalable image watermarking. A scalable decomposition of the watermark is spread into the entire frequency sub-bands of the wavelet decomposed image. At… read more here.

Keywords: image; scalable image; frequency sub; wavelet ... See more keywords
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JPEG image steganography payload location based on optimal estimation of cover co-frequency sub-image

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Published in 2021 at "EURASIP Journal on Image and Video Processing"

DOI: 10.1186/s13640-020-00542-2

Abstract: The excellent cover estimation is very important to the payload location of JPEG image steganography. But it is still hard to exactly estimate the quantized DCT coefficients in cover JPEG image. Therefore, this paper proposes… read more here.

Keywords: payload location; image; jpeg image; frequency sub ... See more keywords