Title :
A wavelet-based image watermarking scheme
Author :
Lumini, Alessandra ; Maio, Dario
Author_Institution :
Dipt. di Elettronica Inf. e Sistemistica, Bologna Univ., Italy
Abstract :
A wavelet-based image watermarking scheme is proposed, based on the insertion of pseudo-random codes in the frequency domain. The original image is required for the watermark detection. The “strength” of the signature to be embedded depends on the image to be marked, thus fitting signal capacity. The experimental results prove that the method is more tamper resistant and less perceptible for any type of images than other well-known private methods in the frequency domains
Keywords :
discrete wavelet transforms; frequency-domain analysis; image coding; pseudonoise codes; security of data; signal detection; transform coding; discrete wavelet transform; experimental results; frequency domain; pseudo-random codes; signal capacity; signature; tamper resistant method; watermark detection; wavelet-based image watermarking; Computational efficiency; Copyright protection; Digital signatures; Discrete wavelet transforms; Electronic switching systems; Frequency domain analysis; Robustness; Watermarking; Wavelet domain; Web sites;
Conference_Titel :
Information Technology: Coding and Computing, 2000. Proceedings. International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-7695-0540-6
DOI :
10.1109/ITCC.2000.844194
