@article {18199, title = {Distortion compensated lookup-table embedding: Joint security and robustness enhancement for quantization based data hiding}, journal = {Electronic Imaging Symposium: Security, Steganography, and Watermarking of Multimedia Contents VI, San Jose, CA, Proc. of SPIE}, volume = {5306}, year = {2004}, month = {2004///}, pages = {610 - 621}, abstract = {Data embedding mechanism used for authentication applications should be secure in order to prevent an adversaryfrom forging the embedded data at his/her will. Meanwhile, semi-fragileness is often preferred to allow for distinguishing content changes versus non-content changes. In this paper, we focus on jointly enhancing the robustness and security of the embedding mechanism, which can be used as a building block for authentication. The paper presents analysis showing that embedding through a look-up table (LUT) of non-trivial run that maps quantized multimedia features randomly to binary data offers a probability of detection error considerably smaller than that of the traditional quantization embedding. We quantify the security strength of LUT embedding and enhance its robustness through distortion compensation. We introduce a combined security and capacity measure and show that the proposed distortion compensated LUT embedding provides joint enhancement of security and robustness over the traditional quantization embedding. }, author = {Wu,M.} }