Encryption of medical images based on the cosine number transform

In this paper, we introduce a novel scheme for encryption of medical images. The technique is based on the cosine number transform, a mathematical tool whose application requires modular arithmetic only. This property avoids rounding-off errors and allows that the image recovered after the encryptio...

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Veröffentlicht in:	Signal processing. Image communication 2015-07, Vol.35, p.1-8
Hauptverfasser:	Lima, J.B., Madeiro, F., Sales, F.J.R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Cosine number transform Cryptography Encryption Image encryption Mathematical analysis Medical images Medical imaging Transforms
Online-Zugang:	Volltext
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