Özet:

Modern technological advances has made it very easy to produce illegal copies of multimedia data such as image, audio, video, or text. Digital watermarking techniques aim to digitally embed copyright information into the media to be protected in an attempt to prevent illegal use of copyright protected data files. In this study, the method of digital image watermarking with biometric data is discussed. The use of biometric features instead of traditional watermarks increases the security of the watermarking scheme. Iris biometric data is preferred in this study because it is more secured and more difficult to copy. The iris template produced from the eye image of the person is converted into binary code via discrete cosine transform. This binary code is embedded into the cover image with the help of the redistributed invariant discrete wavelet transform and Schur decomposition. The blocks used for embedding binary code are selected based on their standard deviation values. Experimental results revealed that the perceptual quality of the proposed method is high. In addition, it is found to be highly robust against different types of image processing attacks as well as geometrical attacks. Keywords: Biometric Watermarking, Redistributed Invariant Discrete Wavelet Transform, Schur Decomposition, Robustness

Anahtar Kelimeler: