Content Protection through Reversible Watermarking Technique
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 3, Issue 1
Abstract
This paper proposes a steganalysis scheme for detecting reversible contrast mapping (RCM) watermarking. Lossless data hiding is a technique that used to embed secret message into media for generating the stego image. The stego image, the receiver who obtains the stego image can extract the secret message from it and restore the original media via the extraction and recovery image algorithms. Reversible contrast mapping (RCM) is a simple integer transform method that applies to pairs of pixels. Even if the least significant bits (LSBs) of the transformed pixels are lost, for some pairs of pixels, RCM is invertible. For data hiding data space occupied by the LSBs is suitable. The embedded information bit-rates of the proposed spatial domain reversible watermarking scheme are close to the highest bit-rates reported so far. This scheme does not need additional data compression, and it is having the lowest mathematical complexity one proposed up to now. Here a very fast lookup table implementation is proposed. Reversible Contrast Mapping (RCM) can achieve 100% original image as well as watermark.
Authors and Affiliations
Rupali S. Warkar
Keywords
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