A Novel Adaptive Pixel Retaining Approach for Robust Watermarking Using Histogram Intersection Technique

Imperceptibility criterion as, the host image is intellectual property that the owners want to protect. It should be visually the increased usage of digitized data for communication leads to the high demand in the copyright protection of the data. This proposed watermarking technique helps to highly improve the capacity of embedding watermark without affecting the imperceptibility and robustness. The approach couples the idea of building analysis rule in generating the watermark, thereby increasing the capacity of embedding watermark. The approach is additionally guided with Histogram Intersection technique to improve the confidentiality of watermark. The APRA (Adaptive Pixel Retaining Approach) Algorithm helps to improve the imperceptibility of the extracted watermark. Watermark is embedded in host image by Singular Value Decomposition (SVD). The APRA Algorithm helps to rebuild the extracted watermark in such a way that it remains close to the original watermark. With the available dataset, the experiments are performed and obtained results shows that the proposed watermarking technique yields watermarked images with high imperceptibility and robustness to common attacks.