a r t i c l e i n f o a b s t r a c t Keywords: Digital image watermarking Integer wavelet transform Singular value decomposition Wilcoxon signed rank test Digital signature In this paper, a new robust and secure digital image watermarking scheme that can be used for copyright protection is proposed. The scheme uses the integer wavelet transform (IWT) and singular value decomposition (SVD). The...

Digital steganography exploits the use of a host data to hide a piece of information in such a way it is imperceptible to a human observer. In this paper we propose an image steganography system, in which the data hiding (embedding) is realized in bit planes of subband wavelets coefficients obtained by using the Integer Wavelet Transform (IWT). To increase data hiding capacity while keeping the...

In image compression, the motive is to reduce the data redundancy significantly, both in spatial and frequency domain, without much affecting the quality of the picture. Almost lossless reversible image compression model is proposed for both continuous and discrete time cases, exploiting integer wavelet transform(IWT) employing lifting scheme(LS).Unlike its conventional counterpart in wavelet d...

This paper presents an approach for an Enhanced Image Compression Method using Optimal sub-band Shift based SPIHT (Set partitioning in Hierarchal Trees)Algorithm. This is based on the progressive image compression algorithm, SPIHT which is an extension of Shapiro's embedded Zero tree Wavelet Algorithm. The proposed Optimal Sub-band Shift (OSS) Algorithm overcomes the difficulty of Embedded zero...

In this paper, the design of new real time integer to integer lifting based wavelet transform IWT architecture is focused. An efficient design method is proposed to construct an integrated programmable VLSI architecture that can operate as forward or backward IWT in pipeline fashion. The layout VLSI integrated structure is simple, modular, and cascadable for computation of wavelet transform bas...

The prime requirement of reversible watermarking scheme is that the system should be able to restore the cover work to its original state after extracting the hidden information. Reversible watermarking approaches, therefore, have wide applications in medical and defense imagery. In this paper, an intelligent reversible watermarking approach GA-RevWM for medical images is proposed. GA-RevWM is ...

In this paper, an image steganography system is proposed, in which the data hiding (embedding) is realized in bit planes of subband wavelets coefficients obtained using the Integer Wavelet Transform (IWT). To increase data hiding capacity while keeping the imperceptibility of the hidden data, the replaceable IWT coefficient areas are defined by a complexity measure used in the Bit-Plane Complex...

The use of the discrete wavelet transform (DWT) for embedded lossy image compression is now well established. One of the possible implementations of the DWT is the lifting scheme (LS). Because perfect reconstruction is granted by the structure of the LS, nonlinear transforms can be used, allowing efficient lossless compression as well. The integer wavelet transform (IWT) is one of them. This is...

A robust reversible data hiding scheme for multispectral image is proposed in this paper. Different from the existing robust lossless data hiding schemes which use statistical quantity of the arithmetic difference of image blocks, this method shifts transform domain statistical quantity histogram to get a better performance for multispectral images. The statistical quantity of the average of th...