˗ In this paper we aim to present a survey of different techniques on digital image watermarking. Digital watermarking technique is becoming more important in this developing society of internet. Digital watermarking is used as a key solution to make the data transferring secure from illegal interferences. Digital watermark techniques are used in various areas such as copyright protection, broa...

The protection and authentication problems for three dimensional (3D) models have become more and more important. The capability of accurately verifying, locating, and recovering any tampered vertex is one of the most important issues. Published fragile watermarking 3D model schemes have a main drawback, the synchronization problem. To increase the capacity of verification and overcome this dra...

Zero-watermarking is a key technique for achieving lossless and flexible copyright protection of depth image-based rendering (DIBR) videos. Existing approaches extract features both 2D frames maps via single mechanism to protect them simultaneously. However, it difficult these schemes fully satisfy the requirements two components, including remarkable discriminative capability 3D videos robustn...

In this work, authors propose a novel scheme with commutative encryption and reversible watermarking for a fingerprint image. Due to commutative property one can embed and extract watermark in either plain or encrypted fingerprint image, irrespective of order in which encryption or watermarking is applied. The encryption and the watermarking keys are shared using secret key sharing mechanism. T...

Today’s life internet offers great convenience in transmitting large amount of data in different parts of the world. However, the safety and security of long distance communication remains an issue. In order to solve this problem has led to the increase in the need of copyright protection. The application of Image watermarking in copy control, broadcast monitoring, copyright protection, video a...

We compute the coding capacity of the watermarking game for a vector Gaussian covertext and squared-error distortions. As with a scalar Gaussian covertext [1], the capacity does not depend on knowledge of the covertext at the decoder. Unlike the scalar version, an attacker based on the rate distortion solution (i.e. optimal compression) is suboptimal.

Robustness is a key attribute of spread spectrum (SS) watermarking scheme. It is significantly deteriorated if one tries to achieve high embedding rate keeping other parameters unaltered. In literatures, typically various transformations like DFT, DCT, Fourier–Mellin and wavelet are used for SS multimedia watermarking but little studies have been attempted so far to see what are the possible fa...

Annotation watermarking (also called caption or illustration watermarking) is a specific application of image watermarking, where supplementary information is embedded directly in the media, linking it to media content, whereby it is not get separated from the media by non-malicious processing steps like image cropping or non-lossy compression. Nested object annotation watermarking (NOAWM) was ...

Robustness and security are two major concerns in information hiding. These two concerns have been defined in [6] as follows. “Robust watermarking is a mechanism to create a communication channel that is multiplexed into original content [...]. It is required that, firstly, the perceptual degradation of the marked content [...] is minimal and, secondly, that the capacity of the watermark channe...

This letter suggests a novel high capacity robust audio watermarking algorithm by using the high frequency band of the wavelet decomposition, for which the human auditory system (HAS) is not very sensitive to alteration. The main idea is to divide the high frequency band into frames and then, for embedding, the wavelet samples are changed based on the average of the relevant frame. The experime...