An Improved Reversible Data-Hiding Scheme for LZW Codes
Wenqiang Zhao, Bailong Yang, Shizhong Gong, Xuesong Li
Available Online September 2016.
- https://doi.org/10.2991/iccia-16.2016.47How to use a DOI?
- Data Hiding; LZW Compression; Compression Codes.
- HPDH-LZW is a reversible data hiding scheme based on Lempel-Ziv-Welch (LZW) compression codes. It could achieve better hiding capacity by increasing the number of symbols available to hide secrets and faster hiding and extracting speeds due to the lower computation requirements. HPDH-LZW scheme embeds secret data in LZW compression codes by modifying the value of the compression codes, but the modified LZW compression codes is not continuous so that its data space could not be fully used. To solve this problem, we subdivide the compression codes data space and hide different number of secret data in different subspaces. Guided by the idea we realize an improved reversible data-hiding scheme for LZW codes. Experiments show that the scheme we proposed has greater data hiding capacity without increasing the size of the compression file and computational complexity when compared with HPDH-LZW scheme.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Wenqiang Zhao AU - Bailong Yang AU - Shizhong Gong AU - Xuesong Li PY - 2016/09 DA - 2016/09 TI - An Improved Reversible Data-Hiding Scheme for LZW Codes BT - 2016 International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2016) PB - Atlantis Press SP - 254 EP - 259 SN - 2352-538X UR - https://doi.org/10.2991/iccia-16.2016.47 DO - https://doi.org/10.2991/iccia-16.2016.47 ID - Zhao2016/09 ER -