Comparison of robustness performance on imagewatermarking techniques against rotation attack

In this paper, increasing illegal utilization and imitation of digital images in the field of image processing has led to the urgent development of copyright protection methods. Digital watermarking has proved to be the most effective method for protecting illegal authentication of data. In this article, we propose the latest digital-image watermarking methods. The watermark image is embedded into the host image using discrete wavelet transform (DWT). During the extraction process, GA, PSO, SFIT, SVD and the hybrid combination of GA and PSO are applied to improve the robustness of the watermarked image by evaluating the fitness function. The robustness of the watermarked and the extracted images is evaluated by applying rotation attack to the watermarked image. From the simulation results, the performance of the hybrid particle swarm optimization technique is proved best, based on the computed robustness, as well as the evaluated parameters of other methods

کلیدواژه ها:

component ، Digital Image Watermarking ، Robustness ، Rotation Attack ، Frequency Domain