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The Structure of Reversible DTCNN (Discrete-Time Celluar Neural Networks) for Digital Image Copyright Labeling  

Lee, Gye-Ho (Korea Telecom)
Han, Seung-jo (Chosun University, Division of Electronics & Communication Information Eng.)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.7, no.3, 2003 , pp. 532-543 More about this Journal
Abstract
In this paper, we proposed structure of a reversible discrete-time cellular neural network (DTCNN) for labeling digital images to protect copylight. First, we present the concept and the structure of reversible DTCNN, which can be used to generate 2D binary pseudo-random images sequences. We presented some, output examples of different kinds of reversible DTCNNs to show their complex behaviors. Then both the original image and the copyright label, which is often another binary image, are used to generate a binary random key image. The key image is then used to scramble the original image. Since the reversibility of a reversible DTCNN, the same reversible DTCNN can recover the copyright label from a labeled image. Due to the high speed of a DTCNN chip, our method can be used to label image sequences, e.g., video sequences, in real time. Computer simulation results are presented.
Keywords
discrete-time cellular neural network (DTCNN); copyright label; key image;
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