In this paper, we proposed a categorization for most of the existing watermarking algorithms that work in wavelet domain. Then an adaptive watermarking attack for digital images that is based on the proposed categorization ...

In this paper, we propose a DCT-based blind

watermarking scheme based on spread spectrum

communications. We compute the DCT of non overlapping

8x8 blocks of the host image. Then using the DC ...

In this paper we present a blind low frequency watermarking scheme on gray level images, which is based on DCT transform and spread spectrum communications technique. We compute the DCT of non overlapping 8times8 blocks ...

In this paper, we propose a new method for damaging and destroying robust invisible watermarks using an image resizing technique which is named seam carving. By using this method we are able to resize watermarked images ...

In this paper, we propose a new method for damaging and destroying robust invisible watermarks using an image restoration technique which is called long-range correlation. The restoration technique is based on the concept ...