In a color image every pixel value composed of red, green and blue component and each of which ranges from 0 to 255 in case of 8-bit representation. In this paper, we have used pixel value differencing (PVD) method for secret data... more
In a color image every pixel value composed of red, green and blue component and each of which ranges from 0 to 255 in case of 8-bit representation. In this paper, we have used pixel value differencing (PVD) method for secret data embedding in each of the component of a pixel in a color image. But when we use pixel-value differencing (PVD) method as image steganographic scheme, the pixel values in the stego-image may exceed the range 0~255. We have eliminated this overflow problem of each component pixel. Furthermore for providing more security, we have used different number of bits in different pixel components. It would be very difficult to trace how many bits are embedded in a pixel of the stego image. From the experiments it is seen that the results obtained in proposed method provides better visual quality of stego-image compared to the PVD method.
The present time can be characterized as an era of digital revolution which has resulted in a creativity burst in different design applications. Nowadays Computer Aided Architectural Design (CAAD) undoubtedly is recognized as a design... more
The present time can be characterized as an era of digital revolution which has resulted in a creativity burst in different design applications. Nowadays Computer Aided Architectural Design (CAAD) undoubtedly is recognized as a design media rather than a simple computerized design tool and is widely accepted in architectural practice. The general goal architects pursue is to visually express design
This efficient novel proposes the implementations of [RDH] Reversible data hiding techniquewith an adaptive high embedding capacity by using the [LSB] Least significant method to embed the data into the fused image. RDH can be used in... more
This efficient novel proposes the implementations of [RDH] Reversible data hiding techniquewith an adaptive high embedding capacity by using the [LSB] Least significant method to embed the data into the fused image. RDH can be used in important and sensitive areas like military applications where image secrecy is maintained. This method helps to hide or encrypt a data into an image with full embedding efficiency and the original content can be losslessly recovered and also includes the watermarking algorithm. The existing algorithm used generalized integer transformation [GIT] which was used for embedding process and generalized and adaptively embeds additional bits into different kinds of blocks. Thus, to enhance the security while encryption and decryption and to minimize the distortion and achieve security to the embedded data the RDH algorithm is used.
Data hiding, a form of steganography, embeds data into digital media for the purpose of identification, annotation, and copyright. Several constraints affect this process: the quantity of data to be hidden, the need for invariance of... more
Data hiding, a form of steganography, embeds data into digital media for the purpose of identification, annotation, and copyright. Several constraints affect this process: the quantity of data to be hidden, the need for invariance of these data under conditions where a "host" ...
Page 1. Minimizing Security Threats in Multimedia Systems Harsh Vikram Singh,Ashutosh Kumar Singh*, S.KBalasubramanian, AnandMohan Centre for Research in Microprocessor Applications Department ofElectronics Engineering ...
We propose a robust and imperceptible spectral watermarking method for high rate embedding of a watermark into 3D polygonal meshes. Our approach consists of four main steps: (1) the mesh is partitioned into smaller sub-meshes, and then... more
We propose a robust and imperceptible spectral watermarking method for high rate embedding of a watermark into 3D polygonal meshes. Our approach consists of four main steps: (1) the mesh is partitioned into smaller sub-meshes, and then the watermark embedding and extraction algorithms are applied to each sub-mesh, (2) the mesh Laplacian spectral compression is applied to the sub-meshes, (3)
This paper proposes a high capacity reversible image watermarking scheme based on enhancement of difference expansion method. Reversible watermarking enables the embedding of useful information in a host signal without any loss of host... more
This paper proposes a high capacity reversible image watermarking scheme based on enhancement of difference expansion method. Reversible watermarking enables the embedding of useful information in a host signal without any loss of host information. We propose an enhancement of Difference Expansion technique whereby we can embed recursively into multiple layer of payload for grey scale and also RGB color scale, hence it increase capacity much better. The proposed technique improves the distortion ...