This paper presents a digital rights protection scheme for both colour and grayscale images using a novel approach that combines watermarking and cryptography. The schema involves two parties: the owner of the digital rights and a generic user who acquired some rights on a copy of the image that will be watermarked. The watermark, a QR code derived from a signed “License Agreement”, is repeatedly inserted, and scrambled, by the image right’s owner, into the frequency components of the image, thus producing the watermarked image. The schema, a non-blind type, achieves good perceptive quality and fair robustness using the 3rd level of the Discrete Wavelet Transform. The experimental results show that, inserting more occurrences of a scrambled QR code, the proposed algorithm is quite resistant to JPEG compression, rotation, cropping and salt & peeper noise.

A novel QR-code based watermarking scheme for digital rights / D'Amore, F.; Chiavarelli, S.. - 2254:(2018), pp. 29-40. (Intervento presentato al convegno 2018 Multidisciplinary Symposium on Computer Science and ICT, REMS 2018 tenutosi a Stavropol; Russia).

A novel QR-code based watermarking scheme for digital rights

d'Amore F.
Membro del Collaboration Group
;
2018

Abstract

This paper presents a digital rights protection scheme for both colour and grayscale images using a novel approach that combines watermarking and cryptography. The schema involves two parties: the owner of the digital rights and a generic user who acquired some rights on a copy of the image that will be watermarked. The watermark, a QR code derived from a signed “License Agreement”, is repeatedly inserted, and scrambled, by the image right’s owner, into the frequency components of the image, thus producing the watermarked image. The schema, a non-blind type, achieves good perceptive quality and fair robustness using the 3rd level of the Discrete Wavelet Transform. The experimental results show that, inserting more occurrences of a scrambled QR code, the proposed algorithm is quite resistant to JPEG compression, rotation, cropping and salt & peeper noise.
2018
2018 Multidisciplinary Symposium on Computer Science and ICT, REMS 2018
watermarking; qr-code; dwt
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
A novel QR-code based watermarking scheme for digital rights / D'Amore, F.; Chiavarelli, S.. - 2254:(2018), pp. 29-40. (Intervento presentato al convegno 2018 Multidisciplinary Symposium on Computer Science and ICT, REMS 2018 tenutosi a Stavropol; Russia).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1516404
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