Robust and Fragile Image Adaptive Watermarking Using Dwt and Sv

A novel algorithm combining two watermarking techniques for digital images is developed. Two binary watermarks are embedded in the wavelet subbands; watermark extraction is blind with respect to the original image. Experimental results show that this watermarking scheme has robust as well as fragile qualities toward image processing attacks, such as filtering, compression, and modification, due to the dual nature of the design.