Edge Adaptive Image Steganography Based on Adaptive Pixel Pair Matching
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2014, Vol 16, Issue 1
Abstract
This paper proposes a new improved steganographic technique based on pixel pair matching which is driven by edge adaptive technique. The cover image is scanned first to explore the edges of the image and is used as the candidate region to perform data hiding using pixel pair matching. The basic idea of pixel pair matching (PPM) is to use the value of a pixel pair as a reference coordinate, and search a coordinate in the neighborhood set of this pixel pair according to a given message digit. The pixel pair is then replaced by the searched coordinate to conceal the digit. The method uses only sharper edge regions while keeping the other smoother regions as they are. In contrast to the existing methods based on PPM, the masking driven approach has lower distortion for various payloads. The proposed method is expected to provide better performance than the existing techniques based on LSB and also secure against well-known steganalysis techniques.
Authors and Affiliations
Akhil P. V
Keywords
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