Block compressive sensing based watermarking scheme for image tampering detection

In this paper, we describe a watermarking scheme using block compressive sensing for tampered image detection. The image is divided into several sub blocks whose size can be tuned by the data quantity of watermarking and tamper localization accuracy. The sub blocks were observed by compressive sensing using a Fourier matrix. The observing results were assembled to form the watermarking which will be embedded to the whole image. We save the watermarking and seed for image tampering detection. Test results proved higher security and scalability of the proposed scheme over conventional domain watermarking scheme.