Watermarking using SMRT on Grayscale Images and Attack analysis

Digital images are important data types with an extensive field of application and users are interested in implementing strategies to protect its content from preview or exploitation. The aim of creating an image - watermarking strategy is to fulfil the requirements of both robustness and imperceptibility. An image - watermarking scheme based on Sequency based MRT (SMRT) is proposed in this paper to accomplish this goal. In the embedding phase, the watermark is embedded in the SMRT of the grayscale cover image. The value of the scaling factor determines the embedded strength of the watermark. The scaling factor is varied from 0.01 to 1 to evaluate the performance of the methodology. Simulation results reveal that the algorithm outlined has better invisibility and robustness performance.