Copyright protection of digital images by means of frequency domain watermarking

Alessandro Piva; Mauro Barni; Franco Bartolini

doi:10.1117/12.330369

6 November 1998 Copyright protection of digital images by means of frequency domain watermarking

Alessandro Piva, Mauro Barni, Franco Bartolini

Proceedings Volume 3456, Mathematics of Data/Image Coding, Compression, and Encryption; (1998) https://doi.org/10.1117/12.330369
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Notwithstanding the high availability of image contents, multimedia products propose very low quality pictures, primarily due to the fact that effective systems for the copyright protection of multimedia works are unavailable. A digital image can, in fact, be easily reproduced obtaining as many identical copies of it as we want, without any possibility to prevent it.To get around the problem, further than scrambling the data to be protected by means of cryptographic techniques, a code carrying information about IPR could be invisibly embedded into them, in such a way to provide a mean to control their distribution. This is the aim of image watermarking techniques. In this paper general issues related to copyright protection of digital data as well as some items referring to the embedding of a watermark in the frequency domain, are discussed. Results are also presented showing the robustness of the proposed algorithms.

Citation Download Citation

Alessandro Piva, Mauro Barni, and Franco Bartolini "Copyright protection of digital images by means of frequency domain watermarking", Proc. SPIE 3456, Mathematics of Data/Image Coding, Compression, and Encryption, (6 November 1998); https://doi.org/10.1117/12.330369

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