An Adaptive Watermarking Process in Hadamard Transform
This addresses copyright protection for digital data, but it appears incremental as it builds on existing watermarking methods with adaptive features.
The paper tackled the problem of protecting digital data privacy and copyright by developing an adaptive visible/invisible watermarking scheme using Hadamard transform, which is robust against image/signal processing attacks and confirmed efficient through performance analysis and experimental results.
An adaptive visible/invisible watermarking scheme is done to prevent the privacy and preserving copyright protection of digital data using Hadamard transform based on the scaling factor of the image. The value of scaling factor depends on the control parameter. The scaling factor is calculated to embedded the watermark. Depend upon the control parameter the visible and invisible watermarking is determined. The proposed Hadamard transform domain method is more robust again image/signal processing attacks. Furthermore, it also shows that the proposed method confirm the efficiency through various performance analysis and experimental results.