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Watermarking on Digital Images has dissimilar methods, some of them contracts with frequency domain. The Watermarking methods using frequency domain produce better results either concerns with image excellence or invisibility of the watermark. The numerical watermarking is such that it offers copyright protection by information hiding. The investigators all over the world are still trying to find out the way to create robust Digital Image Watermarking Methods. Digital image watermarking techniques have been developed widely in new years to maintain the broadcasting media and satisfied authentication, broadcast monitoring, copy control, and many other applications. The method involves introducing of the watermark in the host appearance in the Discrete Cosine Transform domain in a spread-spectrum format. The digital data are spread using the Internet. So digital data must be secure, copyright protected, and authenticated at the same time.

Watermarking, DCT (Discrete Cosine Transformation), Digital Images, Techniques

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Ashminder Kaur, Ms. Lofty, "A Review of Colour Image Watermarking Scheme Based Image Normalized," International Journal of Computer Sciences and Engineering, Vol.4, Issue.7, pp.183-185, 2016.

QR code (shortened from Quick Response code) matrix barcode (or two-dimensional code) initially intended for the car business is a trademark. QR code on the Internet, with the quick advancement of the transmission required, for the security of computerized data against unlawful use turns out to be increasingly imperative. To overcome basic restrictions in the one-dimensional disorganized framework,, our proposed scheme presents good encryption system with large key space. Due to bulky data capacity and very high relationship among pixels in QR Code documents, customary methods are not appropriate for QR Code encryption. QR code to get this paper proposes a chaotic scheme, enormous information limit and high relationship between's pixels in QR codes as documents, conventional systems are not reasonable for encryption QR code. (For example, AES and DES) as contrasted and chaos-based encryption schemes QR code has done well.

Security, QR Codes, Chaotic Encryption.

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Tarunika Anita Sahoo, "Securing QR Codes with Encryption Schemes: A Survey," International Journal of Computer Sciences and Engineering, Vol.4, Issue.7, pp.168-191, 2016.

Natural Language Processing and Programming Languages are both established areas in the field of Computer Science, each of them with a long research tradition. Natural Language processing Frameworks can make conceivable the use of natural language to express ideas. In education system, Natural Language Processing gives solution in a assortment of differing fields related with the social and cultural context of language learning. Natural Language Processing is broadly integrated with the expansive number of education connections such as research, science, linguistics, e-learning, evaluations system, and contributes resulting positive outcomes in other education settings such as schools, higher education system, and universities. In healthcare, NLP Frameworks decrease fetched as well as improve the quality of electronic healthcare systems. It is therefore against this foundation that this paper reviews the NLP techniques, uses in education, healthcare and their applications as well as their limitations. The reason of this relook is to overview and report the current state and the future bearings of the use of NLP innovations in different frameworks in the corporate world.

NLP, Education, Application, Education System, Electronic Healthcare Systems, Healthcare, NLP Techniques.

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N.Vasunthira Devi, R. Ponnusamy, "A Systematic Survey of Natural Language Processing (NLP) Approaches in Different Systems," International Journal of Computer Sciences and Engineering, Vol.4, Issue.7, pp.192-198, 2016.