The steganography is the concept of making invisible a communication, and not only incomprehensible its content (as cryptography does). This is generally achieved hiding a secret message into another one ("cover"), which appears as the only object of the communication. This paper proposes a steganographic method employing JPEG2000 images as "cover". It reaches high embedding even introducing a low distortion. Experimental results have shown up to 35%-45% embedding rate, with 2 dB of distortion (in the worst case) at 0.5 bpp and 30%-40% with less than 4 dB at 1.0 bpp. Comparing these results with those achieved by JPEG2000-BPCS, it can be seen that our method produces considerably less post-embedding growth and distortion (in some case, they differ for more than 5 dB).
|Titolo:||JASTEG2000: Steganography for JPEG2000 Coded Images|
|Data di pubblicazione:||2006|
|Nome del convegno:||International Conference on Security and Cryptography, SECRYPT 2006|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|