With the rapid growth in exchanging personal and confidential data through an unsecure channel like the internet and exposing it though disclosing by intruders, the necessity of information security became a great demand. As a result, data hiding or steganography appeared as a vital solution. Audio hiding is a concept of injecting the secret data in an audio carrier. This paper proposes a schem...

Invisible watermarks are mainly used to hide the information in an image. It is the science of secret communication. The goal of invisible watermark is to hide the existence of the message from unauthorized party. The modern secure image invisible watermark presents a task of transferring the embedded information to the destination without being detected by the attacker. Many different carrier ...

The objective of the present project is to uses a new techniques for steganography in a HSI color cover images, which hides secret message in the edges of the carrier images using 2-bit LSB substitution for embedding. To get true edges, canny edge detection technique has been used. Amount of data to be embedded plays an important role on the selection of edges. The main advantage of using HIS c...

Khodaei and Faez proposed a new adaptive data hiding technique based on LSB substitution and pixel-value differencing. Their algorithm can embed a large amount of secret data while maintaining acceptable image quality. However, their proposed algorithm only has fixed embedding capacity. In addition, the derivation for three consecutive pixels in the boundary region is poorly manipulated using r...

Today’s large demand of internet applications requires data to be transmitted in a better manner. Data is transferred in public communication system is not secure because of interception and improper manipulation by eavesdropper. So the better solution for this issue is Steganography, which is the technique of writing hidden messages in such a way that no one, apart from the sender and main rec...

Steganography may be employed for secretly transmitting side information in order to improve the performance of signal processing such as packet loss concealment and band extension of telephony speech. The previous studies employ LSB replacement technique for embedding steganogram information into speech data. Instead of such a lossy steganography technique, this study proposes a lossless stega...

Steganography is an ancient art of conveying messages in a secret way that only the receiver knows the existence of message. So, a fundamental requirement for a steganographic method is imperceptibility, this means that the embedded messages should not be sensible to human eyes. Besides, there are two other requirements, one is to maximize the embedding capacity, and the other is security. The ...

For the LSB steganography, a fusion method is proposed to fuse two typical quantitative steganalysis methods based on support vector regression (SVR). This paper first gives some main factors influencing the errors of structural steganalysis and weighted stego image steganalysis, viz. the local variance and saturation. Then, the estimated embedding ratios of above two methods, the local varianc...

In this paper, an effective video watermarking method based on H.264/AVC was proposed. We select Intra_4×4 and Intra_16×16 as the embedding target, each macroblock would be embedded into 1 bit watermark. In Intra_4×4, we explorer the characteristic of the DCT coefficient and adjust them to embed watermark while in Intra_16×16 we modulate the LSB bit of the DC coefficient to realize watermark in...