Geodesic
Modular Digital Watermarking for Image Verification and Secure Data Storage in Web Applications
Serdica Journal of Computing, Tome 8 (2014) no. 4, pp. 309-326.

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Our modular approach to data hiding is an innovative concept in the data hiding research field. It enables the creation of modular digital watermarking methods that have extendable features and are designed for use in web applications. The methods consist of two types of modules – a basic module and an application-specific module. The basic module mainly provides features which are connected with the specific image format. As JPEG is a preferred image format on the Internet, we have put a focus on the achievement of a robust and error-free embedding and retrieval of the embedded data in JPEG images. The application-specific modules are adaptable to user requirements in the concrete web application. The experimental results of the modular data watermarking are very promising. They indicate excellent image quality, satisfactory size of the embedded data and perfect robustness against JPEG transformations with prespecified compression ratios. ACM Computing Classification System (1998): C.2.0.
Keywords: Modular Digital Watermarking, Steganography, Data Hiding, JPEG, Web Applications, Image Verification, Secure Data Storage 
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Ilchev, Svetozar; Ilcheva, Zlatoliliya. Modular Digital Watermarking for Image Verification and Secure Data Storage in Web Applications. Serdica Journal of Computing, Tome 8 (2014) no. 4, pp. 309-326. http://geodesic.mathdoc.fr/item/SJC_2014_8_4_a0/