Information System for Administrating and Distributing Color Images Through Internet

With the technological change in digital color data processing, the color management based on ICC (international color consortium) profiles becomes a new strategy in the printing industry. However, this change is driving to reengineer the color reproduction workflows and how to help printing companies in improving their printing processes by means of color management has not been clearly spelled out by ICC yet. This is the main challenge for ICC to uphold color management for the printing industry in the next generation. This paper aims to address such a problem encountered in printing industry. It provides process modeling for a variety of color work flows, identifies the primitive activities in a unified process model for next generation color management to improve the color print quality and efficiency. It also discusses the key issues for the implementation of the color management processes, especially based on CMYK (cyan, magenta, yellow and black) output profiles, in terms of accuracy and efficiency.

HOW MUCH ICT SECURITY HAS IMPROVED DURING THE LAST DECADE

This paper describes a competition-based learning scenario for teaching some basic concepts of network security. The scenario is conducted on an ad-hoc LAN using Linux and Windows operating systems running on real and virtual machines. Students were expected to learn how to: 1) set up a wired or wireless ad-hoc LAN and connect to it; 2) run Linux and Windows Operating systems on VirtualBox and connect the virtual machines to the ad-hoc LAN; 3) set up the required services on an Apache web server and tools for attack and defense, as well as, traffic monitoring; 4) test DoS attack tools running on Linux and Windows platforms; 5) run packet sniffing tools for monitoring the volume of traffic against the server; and 6) explore defense mechanisms. The instructor demonstrated the methods and tools before the experiments. Students were separated in two groups, group A and group B. At first, group A acted as the red team (attackers) and group B played the blue team (defenders). The following week group roles were exchanged. The instructor had a multiple role. During the preparation phase he acted as a teacher building the necessary background, designing, modifying and applying the educational scenario. During the execution phase he acted as coach and motivator offering advice and technical support; he also acted as a researcher, observing student participation, decision-making and initiatives, in order to assess the scenario as well as the students. Scenario performance contributed 10 percent of the oral grade of the course. Students' evaluation of this lab exercise was positive. Lessons learned from this effort will help the instructor to improve the scenario and incorporate additional tools as well as more types of cyber attacks in the future.

Data security is an important aspect of information systems, especially in the widely used windows operating system environment. Modern encryption technology offers a variety of ways to increase data protection from security threats. This method utilizes literature insights and comparative analysis of various cryptographic techniques applied to the Windows operating system. Data sources were obtained from academic journals, books and technical documents from Microsoft and cyber security institutions. This article describes various modern cryptographic techniques that can be applied to the Windows operating system, including symmetric and asymmetric algorithms and end-to-end encryption. Protocol implementation security. This research also examines the effectiveness of cryptographic techniques in overcoming cyber security threats and provides the best recommendations for improving data security. It also provides a comparative analysis of various cryptographic techniques implemented in Windows operating systems. This study shows that evaluating encryption techniques can help overcome cyber threats and provide optimal solutions to improve data security. Data sources were obtained from academic journals, books, and technical documents from Microsoft and cyber security.

Networks are everywhere or so it seems. You can hardly do anything with data that does not involve a network. Like the human networks that we are all part of, computer networks let us share information and resources. In business, the reliance on networks is even more pervasive than in homes or schools. In Gwagwalada area council, the mode of documentation is usually a manual form, which is a vulnerability to the security of confidential data such as employee, citizens and political data. The method of printing and access to information is ambiguous; sometimes an employee will have to leave his/her office to another office just to have a printout which can be easily gotten by sharing resources through network. In this Research, a study of the existing system was carried out using Qualitative means of information gathering technique which involves in-depth interview and observation that prompted the release of a new network system. Local Area Network system is designed for Gwagwalada Area Council that is capable of providing network resources and services (as well as Internet connections if the need be by the organization) to local users and a limited access of network service to public users for Business activities. Through this networking system, the organization can effectively reduce daily running cost, the organization internal works can be more systematic and well organized, and the communication of the employees in the organization can become more efficient by the use of mail services. The network is used to share files, prints and data. Employees can communicate with one another through Mail. Besides, some expensive hardware such as color printer can be shared by a lot of employees. The researcher determined the functional requirements and best topology for the Network system deployed. The implementation of the Local area network was completed using Cisco packet Tracer to simulate the process. Keywords: Local Area Network, Deployment, Communication, Gwagwalada Area Council, Abuja, Nigeria CISDI Journal Reference Format Onwodi, G.O. & Ogunlana .A.D. (2019): Local Area Network Deployment for Gwagwalada Area Council, Abuja, Nigeria. Computing, Information Systems, Development Informatics & Allied Research Journal. Vol 10 No 2, Pp 81-110. Available online at www.cisdijournal.org DOI Affix - https://doi.org/10.22624/AIMS/CISDI/V10N2P8

Watermarking is a useful technique for copyright management. It is widely used in various types of digital content management application of grayscale and colour images. But as of now, there has been no method to watermark for a grayscale image using a colour image. In this paper, a unique watermarking for the grayscale image scheme in the transform domain has been proposed. The presented technique is suitable for the digital rights and security management of the diagnostic medical images in the online database. The proposed watermarking method is composed of Discrete Wavelet Transform (DWT) and Singular Value Decomposition (SVD). Additionally, we have used the Firefly Algorithm (FA) to compute appropriate scaling factor to achieve higher perceptibility and robustness. Performance metrics such as PSNR, SSIM, and NCC are used to evaluate the technique. Experimental analysis shows that the proposed technique is 40-45% improved over the existing methods and almost 50% watermark is recoverable under different image processing attacks proving robustness of the technique.

Today’s societal challenges, the pandemic, require new approaches to the organization of modern education, which is becoming increasingly digital and based on blended and distance learning with the introduction of modern information and communication technologies. The use of interactive distance learning methods, which are based on purposeful and controlled intensive independent work of a student who can study in a convenient place, according to the chosen schedule, is relevant and needs to be disseminated. The purpose of the work was to develop a consulting system for interactive provision of knowledge and scientifically sound answers to the client in rural tourism. The research is carried out on the basis of methods of system analysis, SWOT-analysis, monographic method, as well as statistical and sociological research, economic and mathematical modeling. The scientific novelty of the work is the deepening of organizational and consulting proposals for the provision of interactive educational and informational support in rural tourism. As a result, created an interactive educational and information support system based on the optimal combination of computer hardware, computer networks, software, operating systems and databases, which are aimed at the accumulation, storage and transmission of large amounts of information for processing and use. The importance of creating educational and information systems in rural tourism with the use of interactive consultations with the necessary recommendations to quickly meet customer needs is emphasized. The variety of types of rural tourism and forms of accommodation complicates the search for a place to rest, which indicates the need to improve methods of information support in this area. The prospect of using an interactive consulting system of educational and information support for the development of rural tourism indicates the need for computerization of rural areas.KeywordsEducational systemInteractive consultingInformation technologiesRural tourismConsulting systemComponent of tourism productTerritory of priority developmentEconomic developmentEnvironmental situationAgro-consulting services

This paper explores nursing organizations’ experiences, views and policies on computer networks; their ability to access such networks; and to what uses nursing organizations can put the Internet and other networks. There were significant differences between poor and rich countries with respect to access to networking facilities, but not with respect to opinions of the use or potential use of networking. Roughly two-fifths of nursing organizations had access to either the Internet or a local area network (LAN). Richer countries were more likely to have access to both the Internet and LANs. About a half of organizations had email, but only about a quarter accessed email lists. About two-fifths used the World Wide Web (WWW) but only about a tenth had access to USENET newsgroups. There was a significant difference between rich and poor countries with respect to WWW and USENET, with richer countries having greater access. Training for nurses and policies for using computer networks were identified in few organizations, although the potential for computer networks was understood by most. Enthusiasm for using computer networks was particularly noted in poorer and geographically more remote countries. From a list of ten services available via the Internet, the network resource most valued by nursing organizations was online databases; the least valued was videoconferencing.

Autonomous car navigation systems have been on the market since the mid-1980s. To date these systems have seen limited market acceptability due to high cost and lack of adequate map data bases and roadway infrastructure to make navigation systems more useful to the consumer. Today, Japan, the US, and Europe all have programs which are beginning to address making our highways more intelligent, specifying the infrastructure necessary for successful implementation. Many geographic areas are now being digitized and stored on CD ROM. Automakers are also now beginning to address the utility of these autonomous systems. One way to increase utility is to take advantage of the power of the personal computer to make a cost-effective car information and communication system which shares the navigation "computer", display and CD player. Some of the functions of the car information and communication system could include: operation and/or display of the automatic temperature control, audio and video entertainment center, trip computer, navigation system, cellular telephone, and car diagnostics. Certain features could be incorporated by taking advantage of the "computer" in the car. These features might include: autodialing, maintenance logs, "yellow pages" directory, paging, route determination and electronic mail. This paper will discuss a conceptual car information and communication system that is based on a highly-integrated, two chip "PC", the Intel386(TM)SL, which could utilize a PC-like Windows(TM) operating system, notebook PC memory cards and CD ROM based maps.

Our laboratory has investigated the efficacy of a suite of color calibration and monitor profiling packages which employ a variety of color measurement sensors. Each of the methods computes gamma correction tables for the red, green and blue color channels of a monitor that attempt to: a) match a desired luminance range and tone reproduction curve; and b) maintain a target neutral point across the range of grey values. All of the methods examined here produce International Color Consortium (ICC) profiles that describe the color rendering capabilities of the monitor after calibration. Color profiles incorporate a transfer matrix that establishes the relationship between RGB driving levels and the International Commission on Illumination (CIE) XYZ (tristimulus) values of the resulting on-screen color; the matrix is developed by displaying color patches of known RGB values on the monitor and measuring the tristimulus values with a sensor. The number and chromatic distribution of color patches varies across methods and is usually not under user control. In this work we examine the effect of employing differing calibration and profiling methods on rendition of color images. A series of color patches encoded in sRGB color space were presented on the monitor using color-management software that utilized the ICC profile produced by each method. The patches were displayed on the calibrated monitor and measured with a Minolta CS200 colorimeter. Differences in intended and achieved luminance and chromaticity were computed using the CIE DE2000 color-difference metric, in which a value of ΔE = 1 is generally considered to be approximately one just noticeable difference (JND) in color. We observed between one and 17 JND's for individual colors, depending on calibration method and target. As an extension of this fundamental work¹, we further improved our calibration method by defining concrete calibration parameters for the display, using the NEC wide gamut puck, and making sure that those calibration parameters did conform, with the help of a state of the art Spectroradiometer, PR670. As a result of this addition of the PR670, and also an in-house developed method of profiling and characterization, it appears that there was much improvement in ΔE, the color difference.

Abstract. In recent years around the world, and in particular in Bulgaria, there is a reported increase in the number and intensity of disasters caused by natural phenomena. An increase is observed in the adverse effects of disasters on social relations, economic growth and sustainable development of the country. The purpose of the paper is to propose a general framework of information system for integrated risk assessment from natural disasters with the help of modern information and communication technologies. Innovative and classical techniques (quantitative and qualitative approaches, deterministic and stochastic methods, intelligent methods as fuzzy logic and neural networks, etc.) are applied in the overall process of the risk assessment (IEC/ISO 31010:2009): risk identification (identification of single and multiple natural disasters), risk analysis (determination of the disaster probability/intensity; interdependence of multiple disasters; exposure; object vulnerabilities; social, ecological and economical consequences) and risk evaluation. The information system is designed on the principle of modules which implement interaction with geographical information system (GIS) and heterogeneous databases containing information about the monitored objects and potential natural disasters in Bulgaria. The information system will use cloud computing and online network for exchange of heterogeneous databases and expertise for the risks from natural disasters. The proposed information system could successfully assist all stakeholders about risk assessment of the monitored objects before, during or after the occurrence of natural disasters. This system could be considered as a unified platform for interdisciplinary research concerning natural disasters.

Real-time information integrity = system integrity + data integrity + continuous assurances

In the context of globalization and environmental issues worldwide, sustainability has become a crucial concept for maintaining life and natural resources on the planet. Sustainability is an extremely important concept, especially among researchers, representing a constant concern in the textile industry. Worldwide, sustainability is an important concern and priority, both for the conservation of the planet and for the healthy development of society. The experimental research in this paper is part of the field of sustainable textile finishing. These were achieved by applying ecological treatments on linen and hemp fabrics, at ambient temperature between 23-25?C, and the effect of incubation time was studied for 24 h, 48 h, 72 h, 96 h, 120 h. The experimental study aimed at both the influence of treatment on the water absorption capacity of the textile substrate in the absence of enzymes, and the influence of treatment in the presence of enzymes. In order to store the results and experimental information obtained for the use thereof by students and specialists in the field, the paper proposes the development of a software system consisting of a MySQL online database server and a desktop application running on a Windows operating system, created on the .NET platform, using the C # programming language. The software application has an open structure with the possibility to extend the information and add other data. The information used is the result of experimental research regarding the influence of finishing treatments on the water absorption capacity of linen and hemp fabrics in the following situations: both in the absence of enzymes, by means of treatments with buffer solution, respectively treatments with buffer solution and non-ionic surfactant, as well as in the presence of enzymes, by treatments with buffer solution and pectinase enzymes, respectively treatments with enzymes and non-ionic surfactant. Following the experimental research, a comparative analysis can be made between the results obtained after the application of treatments in the absence of enzymes and the application of treatments in the presence of enzymes. The results obtained will appear in the "data" table in order to facilitate the observation and interpretation of data by users. This software system can be used in order to choose the most suitable variants in terms of selecting the fabrics with the best water absorption capacity. Also, this software system can be used as an e-learning tool in teaching-learning activities.

Since the 20th century, information and network technology, mainly represented by microelectronics, computer communication and network technology, has progressed and developed rapidly, and its dissemination and application have had a significant impact on economic development and social transformation. Among them, modern computer communication is an emerging discipline that effectively combines modern computer technology and communication technology. It has developed rapidly after experiencing the information revolution, which has greatly changed the daily work and lifestyle of people in modern society, and the changes in communication have also changed. After entering the new era, the conversion stage from analog signal to digitization to communication signal has basically ended. However, in the field of modern digital communication, there is still a lot of room for the advancement and development of electronic computer technology. Many new technologies and new technologies are emerging in an endless stream, which also provides ample room for future development of the industry. This article analyzes the transformation of computer network communication technology based on multi-platform data. First, use literature research methods to analyze the advantages of computer network communication technology in the era of big data. And summarize the problems of computer network general technology, and then use questionnaires based on big data platform to investigate the impact of computer network communication technology changes on people and the failure of computer network communication in life. The result shows that the video upload fails. The occurrence is very high. About 60% of people have experienced video upload failures. There are relatively few failures in hacking and image upload failures. This shows that the solution to the information network security problem in China is still possible, but the video high incidence of upload failures indicates that the speed of computer network communication needs to be strengthened. The direct impact of the reform of computer network technology is that people have more frequent contacts. About 50% of people have more frequent contacts with family and friends after the reform of computer network technology.

We presents a new method for color printers.Our algorithm applies to both a color printer model and a model for the human visual system (HVS).The method strives to minimize the perceived error between the continuous original image and the halftone image.The color printer models can account for a variety of printer characteristics.We propose a specific printer model that accounts for overlap between neighboring dots of ink and spectral absorption properties of the inks.The color image is partitioned into several regions using clustering segmentation method, whose performance depends on the selection of distance metrics.Each clustering uses the least-squares model-based(Lsmb) algorithm to obtain halftone image.A performance measure for halftone images is used to evaluate our algorithm.Analysis and simulation results show that the proposed algorithm produces better color halftone image quality when we increase the number of clustering with a certain range.