Several steganographic methods have been proposed based on pixel value differencing
(PVD) attempting to increase the embedding capacity without great loss in the perceived …

This paper proposes an image steganography technique based on the principle of pixel
overlapping to improve the embedding capacity (EC) and peak signal-to-noise ratio (PSNR) …

This paper proposes two pixel value differencing (PVD) steganography techniques by
considering adaptive ranges to improve the security. In the first technique, the image is …

This paper proposes a layered approach to improve the embedding capacity of the existing
pixel-value differencing (PVD) methods for image steganography. Specifically, one of the …

Steganography is the science of hiding secure data in digital carriers such as images and
videos. Pixel value differencing (PVD) steganography algorithms embed data into images …

In a gray scale image the pixel value ranges from 0 to 255. But when we use pixel-value
differencing (pvd) method as image steganographic scheme, the pixel values in the stego …

Steganography, a way for covert data communication, aims to send some secret messages
via embedding them into digital image imperceptibly. This paper proposes a new adaptive …

In order to provide large embedding capacity and to minimize distortion for the stego-image,
a steganographic method using multi-pixel differencing is presented in this paper. We …

The steganographic scheme based on pixel value difference (PVD) embeds secret
information by modifying the value of pixel pair within the block. The embedding capacity …

Wu and Tsai proposed PVD (pixel-value differencing) data hiding method in 2003. PVD
partitions a cover image into non-overlapping blocks of two consecutive pixels and …