Abstract— A portable device such as a digital camera with a single sensor and Bayer color filter array (CFA) requires demosaicing to reconstruct a full color image. To display a high resolution image on a low resolution LCD screen of the portable device, it must be down-sampled. The two steps, demosaicing and down-sampling, influence each other. On one hand, the color artifacts introduced in demosaicing may be magnified when followed by down-sampling; on the other hand, the detail removed in the down-sampling cannot be recovered in the demosaicing. Therefore, it is very important to consider simultaneous demosaicing and down-sampling. In this paper, a fast frequency domain analysis approach and an adaptive approach for joint demosaicing and subpixel-based down-sampling of single sensor Bayer images is described. In frequency domain approach for joint demosaicing and subpixel-based down-sampling (FFAJDSD), we integrate demosaicing into down-sampling by directly performing subpixel based down-sampling in the Bayer domain.In Adaptive Joint Demosaicing and Subpixel based Down-sampling scheme (AJDSD),subpixel-based down-sampling is adaptively and directly applied in Bayer domain, without the process of demosaicing.When compared with conventional methods, these two approaches achieve superior performance improvements.

Abstract— In opportunistic networks the existence of a simultaneous path between a sender and a receiver is not assumed. Routing in opportunistic networks is usually based on some form of controlled flooding. But often it results in very high resource consumption and network congestion. In this paper we advocate an improved protocol that exploits the city traffic to send packets by mechanical forwarding (data mulling) and by bypassing the city infrastructure for managing and using context for taking forwarding decisions. This protocol significantly reduces the message loss rate and preserves the performance in terms of message delay.

Abstract— In this paper, to strengthen user’s control of data in the cloud service, a novel approach, namely cloud information accountability (CIA) framework is proposed which secure data during transmission and storage. Experimental results are reported to demonstrate the efficiency and effectiveness of the proposed approach.

Abstract— Every object on Earth emits radiation of one kind or other. Even human body emits radiations off electromagnetic in nature. But these radiations become a concern when human health comes at risk. Here’s the question do electromagnetic radiation; more specifically radio frequency radiation really affect our health? This paper includes about a designing of a circuit which is helpful to measure such radiations which are coming from general household gadgets like laptop charger, internet modem, electric clock, cell phones etc. These radiations are categorized into non ionized radiation. International Commission on Non Ionized Radiation Protection (ICNIRP) sets guidelines for limiting exposure of magnetic field, electric field and electromagnetic field.