A Text Wavelet–based Watermarking Technique
نویسندگان
چکیده
– In this paper we present a wavelet–based watermarking technique, which is applied on scanned texts. The watermark subjected to a pre–processing is embedded in the detail subband coefficients of the original image. Experimental results show that this method does not cause perceptual differences between the original and the watermarked image. Furthermore the watermark proves to be robust, since it can be detected even after manipulations of the image. This technique could be useful in museums’ databases for valuable documents that are scanned and stored. Key–words: – Text Watermarking, Superimposing, Wavelet Transform, Detail Subband Component
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