Reversible Data Hiding Exploiting Variance in Wavelet Coefficients
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad Nacional de La Plata
2011
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| _version_ | 1876426394964066304 |
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| author | Xu-Ren Luo |
| author_facet | Xu-Ren Luo |
| contents | Reversible Data Hiding Exploiting Variance in Wavelet Coefficients Xu-Ren Luo Te-Lung Yin Computación histogram distortion marked media Reversibility wavelet transform In this paper, we present a new reversible data hiding scheme that utilizes the wavelet transform and better exploits the large wavelet coefficient variance to achieve high capacity and imperceptible embedding. Our scheme differs from those of previous studies in that the wavelet coefficients histogram rather than the gray-level histogram is manipulated. In addition, we design intelligent histogram-shifting rules to avoid the decimal problem in grayscale pixel values after recovery process to achieve reversibility. Small changes in the wavelet coefficients after embedding process are important factors contributing to low visual distortion in the marked image. Furthermore, an important property of our scheme is that the use of threshold differs greatly from previous schemes. The experimental results show that our scheme outperforms other reversible data hiding schemes. 2011 artículo científico 1666-6046 https://www.redalyc.org/articulo.oa?id=638067312005 en http://www.redalyc.org/revista.oa?id=6380 Journal of Computer Science and Technology application/pdf Universidad Nacional de La Plata Journal of Computer Science and Technology (Argentina) Num.01 Vol.11 |
| format | Artículo científico |
| id | redalyc_638067312005 |
| institution | Redalyc |
| language | en |
| publishDate | 2011 |
| publisher | Universidad Nacional de La Plata |
| spellingShingle | Reversible Data Hiding Exploiting Variance in Wavelet Coefficients Xu-Ren Luo Computación histogram distortion marked media Reversibility wavelet transform Reversible Data Hiding Exploiting Variance in Wavelet Coefficients Xu-Ren Luo Te-Lung Yin Computación histogram distortion marked media Reversibility wavelet transform In this paper, we present a new reversible data hiding scheme that utilizes the wavelet transform and better exploits the large wavelet coefficient variance to achieve high capacity and imperceptible embedding. Our scheme differs from those of previous studies in that the wavelet coefficients histogram rather than the gray-level histogram is manipulated. In addition, we design intelligent histogram-shifting rules to avoid the decimal problem in grayscale pixel values after recovery process to achieve reversibility. Small changes in the wavelet coefficients after embedding process are important factors contributing to low visual distortion in the marked image. Furthermore, an important property of our scheme is that the use of threshold differs greatly from previous schemes. The experimental results show that our scheme outperforms other reversible data hiding schemes. 2011 artículo científico 1666-6046 https://www.redalyc.org/articulo.oa?id=638067312005 en http://www.redalyc.org/revista.oa?id=6380 Journal of Computer Science and Technology application/pdf Universidad Nacional de La Plata Journal of Computer Science and Technology (Argentina) Num.01 Vol.11 |
| title | Reversible Data Hiding Exploiting Variance in Wavelet Coefficients |
| topic | Computación histogram distortion marked media Reversibility wavelet transform |
| url | https://www.redalyc.org/articulo.oa?id=638067312005 |