The first one involves a full copy of the data being sent to each CSP. Another is to divide the data into several blocks; sub-blocks are then sent to each CSP, and to retrieve all the data it is necessary to obtain all the blocks from all the CSPs. Both of these strategies can be efficient for lock-in or downtime problems in a single CSP. On the other hand, the second strategy can be more secure against a dishonest CSP. The CSP cannot retrieve the full original data and breach its privacy and confidentiality.
One of the main advantages of a wide-angle lens is that you can achieve as much space as possible with a common lens, this, and this is one of the great lenses of wide angles compared to other lenses. It is also great to give you the opportunity to get closer to an item and to get a lot of basic information. Another major goal is that you can move very close to a subject, bringing it to the foreground and keeping both the foreground and background perfect. What landscape and landscape photographers expect this? You really have to do that.
Data security is the protective digital privacy actions that are applied to avoid unauthorized admission to computers, websites, and databases. It also protects data from corruption. Data security is essential for every different size and type of organizations in IT. The focus of data security is to confirm privacy while protecting personal or corporate data. Data is the raw form of information stored in our databases, network servers, and personal computers.
Alternatively a Peeping Tom might steal up to someone’s window with voyeuristic intent, or an ex-spouse might seek to gain incriminating information in order to secure custody of their child” (Allen, 2008 as cited in Macnish, n.d.). Next, the methods used to observe can determine its ethicality. Intent, invasiveness, and target all determine the morality of said means. Generally, surveillance is most ethical when it is used specifically to prevent a crime, which the surveyor has
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Thresholding has created to be a well-known technique used for binarization of document images. Thresholding is further divide into the global and local thresholding technique. Noise reduction: The noise, introduced by the optical scanning device or the writing instrument, causes disconnected line segments, bumps and gaps in lines, filled loops etc. The distortion including local variations, rounding of corners, dilation and erosion, is also a problem. Prior to the character recognition, it is necessary to eliminate these imperfections .
helping to anticipate the unauthorized actions shown to be disruptive to planned operations”. This definition is generally accepted to be an all-inclusive definition.  Willassen and Mjølsnes (2005) defined digital forensics as “the practice of scientifically derived and proven technical methods and tools towards the after-the-fact digital information derived from digital sources for the purpose of facilitating or furthering the reconstruction of events as forensic evidence”.  The main difference between these two definitions is that Willassen and Mjølsnes (2005) removed the criminal element, which broadens the scope of application to include digital forensics in various types of investigations, such as commercial investigations. 
In addition, since difference students have unique learning styles, a blended approach is more likely to cater to those needs. The advantages of using distance and blended learning is a collaborative learning experience which means there is a strong connection between the teacher and the learners via online platform. The collaborative tools can be access easily by the learner and could be able to connect with each other in or out of the classroom. Another is the increase of accessibility towards the lesson and improves their attitude towards learning. Since it is very accessible, the students are given the tools to access the course materials anytime, anywhere.
Wide spread of the Information Technology in the recent past has replaced the analog images with digital images which are easy to produce, store and transfer through Internet. But it has increased the complexity in terms of security as digital format is easy to manipulate. As a result of the wide availability of both the Internet and some powerful image processing software, it is often difficult to determine whether an image is authentic or not. Thus the authentication and the copyright protection from unauthorized manipulation of digital image has become an essential concern in the digital multimedia era. Digital watermarking techniques are one of the better solutions for both image authentication and Copyright protection.
Educational technology has allowed students to use different ways to access informative information in a much simpler way than previous generations. There are many online tools, such as PowerPoint, that have created an opportunity to improve creativity, improve memory, and lesson obstacles that can impact learning. Computers have provided students with the opportunity to preform research, or other tools that can create a more active learning environment. Not only can students benefit from the productivity tools technology can provide, but teachers can also use online programs to present information in a way that is easier to understand. Teachers can also help each other out by sharing their lesson plans online with other teachers or students who want to look back on a lesson.