By Nilanjan Dey
This e-book proposes new algorithms to make sure secured communications and stop unauthorized facts trade in secured multimedia structures. targeting quite a few purposes’ algorithms and situations, it deals an in-depth research of knowledge hiding applied sciences together with watermarking, cryptography, encryption, replica keep watch over, and authentication. The authors current a framework for visible info hiding applied sciences that resolves rising difficulties of recent multimedia purposes in numerous contexts together with the clinical, healthcare, schooling, and instant conversation networking domain names. additional, it introduces numerous clever defense suggestions with real-time implementation.
As a part of its accomplished assurance, the e-book discusses modern multimedia authentication and fingerprinting ideas, whereas additionally presenting own authentication/recognition platforms in line with hand pictures, surveillance approach safety utilizing gait attractiveness, face reputation less than constrained constraints comparable to dry/wet face stipulations, and 3-dimensional face identity utilizing the strategy constructed here.
This publication equips conception expertise execs with the newest applied sciences, concepts, and techniques for multimedia protection structures, providing a priceless source for engineers and researchers operating to boost safeguard systems.
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Extra info for Intelligent Techniques in Signal Processing for Multimedia Security
14 DCT results. a Original, b watermark, and c watermarked images that is, it should be highly transparent or invisible to prevent unauthorized detection and removal. On the other hand, watermark should be resistant to several attacks such as noise addition, cropping, resampling, requantization, MP3 compression, shifting, time scale modiﬁcation (TSM), and pitch scale modiﬁcation (PSM) [22, 23]. In general, audio watermarking is classiﬁed into 2 types: time domain and transform domain . Time domain watermarking schemes are very easy to implement, and they also require less computing resources compared to transform domain watermarking methods.
Star skeleton is useful for multi-polygon shapes and image morphing. The complexity of the algorithm can be reduced using meta-skeleton. 3 Volumetric Morphing One class of 3D metamorphosis algorithm deals with sampled or volumetric representation of the objects. Hughes  has proposed transforming objects into the Fourier domain and then interpolating low frequencies over time while slowly adding the high frequencies, thus minimizing the object distortion caused by the high-frequency components.
Payload refers to the amount of data that can be embedded into the host audio signal. 4. Security refers to the watermark that can only be detected by the authorized person. Robustness and imperceptibility are the most important requirements for digital audio watermarking. D. Desai et al. Fig. 14 DCT results. a Original, b watermark, and c watermarked images that is, it should be highly transparent or invisible to prevent unauthorized detection and removal. On the other hand, watermark should be resistant to several attacks such as noise addition, cropping, resampling, requantization, MP3 compression, shifting, time scale modiﬁcation (TSM), and pitch scale modiﬁcation (PSM) [22, 23].
Intelligent Techniques in Signal Processing for Multimedia Security by Nilanjan Dey