Data-Hiding capacity improvement for text watermarking using space coding method

Abstract

Text watermarking using text lines has a limited capacity problem in hiding data. In this paper, a method to increase the data-hiding capacity of text watermarking using Space coding is proposed. Using the orthogonal property between different sine waves, two or more messages can be embedded at once. Experimental results show that the proposed method keeps the detection rate of the original method the same while increasing the data capacity © Springer-Verlag 2004.