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Jurnal Info Sains : Informatika dan Sains
Published by SEAN INSTITUTE
ISSN : 20893329     EISSN : 27977889     DOI : -
Core Subject : Science,
Computer Science & IT
urnal Info Sains : Informatika dan Sains (JIS) discusses science in the field of Informatics and Science, as a forum for expressing results both conceptually and technically related to informatics science. The main topics developed include: Cryptography Steganography Artificial Intelligence Artificial Neural Networks Decision Support System Fuzzy Logic Data Mining Data Science
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 6 Documents
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Search results for , issue "Vol. 10 No. 2 (2020): September, Informatics and Science" : 6 Documents clear
Analysis Of Shortest Path Determination By Utilizing Breadth First Search Algorithm Sihotang, Jonhariono; Simamora, Siska
Jurnal Info Sains : Informatika dan Sains Vol. 10 No. 2 (2020): September, Informatics and Science
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (592.99 KB) | DOI: 10.54209/infosains.v10i2.30

Abstract

The rapid development of science requires the public to keep up with the development of such technology. The use of computers as one of the tools used to facilitate work and improve the efficiency and effectiveness of work is also high, this we can see from the development of such technology. Artificial Intelligence (AI) is one part of computer science that learns about how to make computers can do the job as humans do. At the beginning of its creation, the computer was only functioned as a counting tool. But along with the development of the times, the role of computers increasingly dominates the life of mankind. Computers are no longer only used as a calculation tool, more than that, computers are expected to be empowered to do everything that can be done by humans. People can be good at solving all problems in this world because people have knowledge andexperience. Knowledge is gained from learning. The more knowledge possessed by a person is certainly expected to be more able to solve problems. But the provision of knowledge alone is not enough, people are also given the sense to reason, draw conclusions based on their knowledge andexperience.
Implementation Of Least Significant Bit (LSB) Algorithm For Data Security In Digital Imagery Penda Sudarto Hasugian Hasugian; Agustina Simangunsong
Jurnal Info Sains : Informatika dan Sains Vol. 10 No. 2 (2020): September, Informatics and Science
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (845.158 KB) | DOI: 10.54209/infosains.v10i2.31

Abstract

In this study, a software was built that can insert text messages into image files (steganography) and steganalisis or detect the presence or absence of secret messages in an image. Imagery is the most commonly used medium for inserting secret messages, as it can hide messages very well and is widely available. The built software implements steganalisis with the Least Significant Bit (LSB) algorithm which is the most widely used message insertion algorithm. Steganlysis software is built using LSB algorithms to perform insertion and extract insertion messages on image files. The LSB algorithm in this study used the microsoft Visual Basic 6.0 programming language tools. Based on the software tests conducted, it can be seen that the software can run well on insertion and detect the presence or absence of secret messages on image files.
Compression of Color Image Using Quantization Method Denni Rajagukguk Rajagukguk; Iqbal Panjaitan
Jurnal Info Sains : Informatika dan Sains Vol. 10 No. 2 (2020): September, Informatics and Science
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (670.995 KB) | DOI: 10.54209/infosains.v10i2.32

Abstract

The development of large-capacity storage media causes people to no longer have problems if they have large files. More so if the file we have is an image file. Nevertheless, sometimes the large file size feels annoying if we have to manage the storage media that we have for various data, thepurpose of this study is to compress color imagery. By using quantization method can be taken, By using data compression then the data capacity will be minimized, Utilization of quantization method will facilitate data compression (image), Image compression with kunatization method in RGB Image can reduce thesize of the compressed file, so as to save storage space(Storage).
Analysis and Implementation of PlayFair Chipper Algorithm in Text Data Encoding Process Pristiwanto Pristiwanto; Heri Sunandar; Berto Nadeak
Jurnal Info Sains : Informatika dan Sains Vol. 10 No. 2 (2020): September, Informatics and Science
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (829.358 KB) | DOI: 10.54209/infosains.v10i2.33

Abstract

This research discusses the implementation of Playfair Cipher to encode text data. Playfair Cipher is one of the classic cryptographic algorithms that use symmetry keys. Originally invented by Sir Charles Wheatstone and Baron Lyon Playfair, the algorithm used a 5x5 keyboard to encrypt and decrypt. The process of encryption and decryption is done by grouping the letters in a bigram. By using a 5x5 keyboard, we can encrypt plaintext (original text data to be encrypted) and decrypt the ciphertext (encrypted text data) by grouping it by removing the letter J from plaintext. The keypad is generated randomly by the software so that each encoding process (encryption and decryption) can use different keys. The software is also used to prove the correctness of the encryption and decryption results of the Playfair Cipher with cube keyboards. Cipher Playfair software is developed using the C++ language and is console-based in a Windows development environment.
3D Image Side Sharpening Using Fourier Phase Only Synthetis Method Amran Sihotang Sihotang; Petti Indrayati
Jurnal Info Sains : Informatika dan Sains Vol. 10 No. 2 (2020): September, Informatics and Science
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.138 KB) | DOI: 10.54209/infosains.v10i2.34

Abstract

In the process of the Fourier Phase Only Synthetis method on two images, the observer must get the impression that the imagery actually changes shape to an intermediate form before it changes to the destination image. These changes must occur in a regular and consistent manner to achieve the image of the goal. This sharpening system is one of the systems that aims for this form change process is widely used in applications in the field of entertainment, computer animation, scientific visualization and education. The sharpening system on the 3-dimensional side of the image aims to identify the pattern of the image. Good image quality if it has good contrast and can describe clear ridges and valleys structures. Based on previous research that the study was conducted improvements with Fourier Phase Only Synthetis where the algorithm used simultaneously estimates all the intrinsic properties of. The quality of image sharpening relates to the clarity of ridge structure on the image side. A good image will have a good contrast and will well depict ridges and valleys, if the fingerprint imagery is of poor quality then it will have less contrast so it will less clearly describe the boundaries of ridges (hills). From the implementation of Fourier Phase Only Synthetis Analysis, using the main parameters ridge orientation image, has been successfully obtained the results of image side improvement well. This image side improvement will greatly help to improve the quality of 3-dimensional image extraction, by specifying constant values to get the bestresults.
Development Direction of Muara Gembong Coastal Area Based on Abrasion Vulnerability Analysis Firman, Firman; Kasman, Kasman; Zefri, Zefri
Jurnal Info Sains : Informatika dan Sains Vol. 10 No. 2 (2020): September, Informatics and Science
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abrasion in Muara Gembong District has resulted in changes in the coastline, reaching 3,852 m. Abrasion causes physical, environmental, social, and economic changes, as well as changes in the lives of local people. This study aims to analyze the level of vulnerability due to abrasion in the coastal area of Muara Gembong. This study uses the AHP method to determine the weight of factors influencing vulnerability due to abrasion by involving stakeholders as respondents. Giving value weights to criteria and alternatives, then pairwise comparisons of each stakeholder's opinions. Using proximity analysis techniques, vulnerability zone analysis was carried out using kernel density analysis techniques and analysis regarding the distance from the coast to settlements. The analysis technique using Weighted Overlay is carried out to determine the vulnerability zone based on the results of the factor weight assessment. From the results of the analysis, the factor that has the greatest influence on the vulnerability of the Muara Gembong coastal area due to abrasion is the environmental factor; this shows that if there is environmental damage, especially damage to protected forests and mangrove forests, it will accelerate the process of coastal abrasion. The analysis results show that 85.10% of the coastal area of Muara Gembong is in the moderate vulnerability zone, 14.25% is in the high vulnerability zone, and 0.65% is in the low vulnerability zone. The results of the superimpose between the spatial pattern plan of Muara Gembong District and the Vulnerability Map show that the directions for developing activities for cultivation areas dominated by residential activities are in high and medium vulnerability zones. In contrast, low vulnerability zones are directed toward developing non-settlement cultivation areas.

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