Adaptive pixel value differencing steganography using both vertical and horizontal edges

@article{Swain2015AdaptivePV,
  title={Adaptive pixel value differencing steganography using both vertical and horizontal edges},
  author={Gandharba Swain},
  journal={Multimedia Tools and Applications},
  year={2015},
  volume={75},
  pages={13541-13556}
}
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 partitioned into 2 × 2 pixel blocks in a non-overlapping fashion and scanned in raster-scan order. For every 2 × 2 pixel block the left-upper and bottom-right corner pixels are targetted based on their correlation with the other two pixels. Both horizontal and vertical edges are considered. In the second technique, the image… CONTINUE READING

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