Vellaisamy Seenivasagam

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Healthcare institutions adapt cloud based archiving of medical images and patient records to share them efficiently. Controlled access to these records and authentication of images must be enforced to mitigate fraudulent activities and medical errors. This paper presents a zero-watermarking scheme implemented in the composite Contourlet Transform(More)
This paper describes a simple logical method to enhance the security in the grid computing. Object Based Grid Architecture (OGA) is a grid architecture based on object oriented concept to enhance the security in grid computing. In the grid environment the data and the process will be a public one since the job is executed on the public connected system and(More)
Digital images are widely used in defense, e-governance, medicine, banking, insurance, healthcare, scientific research, weather forecasting etc. Varied applications in these fields demand the secure exchange of digital images that serve as valid document evidences for legal procedures and for clinical, scientific and forensic analysis. These images are(More)
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