HPS: HISTOGRAM PRESERVING
STEGANOGRAPHY IN SPATIAL
DOMAIN
Muhammad Hilmi Bin Kamarudin
*Yinan Wang, *Weirong Chen, *C.-T.Li, *Yue Li and *Wei Wang
Objective
•
Improve current research in steganography by proposed preserving histogram
method that will make it immune to several steganalysis method.
To minimize the distortion and preserve the embedding by separates the grey
intensity scale into small segments, where the embedding process will only
affect on the grey intensity in the same segment.
•
Method
•
Data Embedding- The algorithm ensures the pixels to be embedded will only be
changed to another intensity in the same segment
Data Extraction- Inverse process of embedding that use constant number
generator to keep the random number same as the original.
•
Result
•
Attacking Test on detection
of symmetry shows the
proposed algorithm is almost
unrecognizable where the
estimation and ground truth
have huge difference.
2