scholarly journals PENERAPAN METODE MODULUS FUNCTION (MF) UNTUK PENYISIPAN PESAN PADA CITRA DIGITAL

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Raimah Handayani Harahap ◽  
Nelly Astuti Hasibuan ◽  
Imam Saputra
Keyword(s):  
Information Technology ◽  
Image Quality ◽  
Processing Time ◽  
Text Messages ◽  
Modulus Function ◽  
Test Results ◽  
High Contrast ◽  
Image Size ◽  
Digital Devices ◽  
Science And Art

Steganography is the science and art of hiding (embedded) information by inserting secret messages in other messages. Steganography in the field of information technology is highly developed, namely for digital devices. Information or messages that can be hidden varies, as can messages that are embedded objects. Variations of messages that are normally subject to insertion objects are text messages, picture messages, audio messages, and video messages. The steganography method used is the Modulus Function (MF) method. This method can insert more messages into pixels that have high contrast values. The research conducted is applying the Modulus Function (MF) method for inserting messages into image files. Based on the test results, it can be concluded that by using the Modulus Function (MF) method, the capacity of the image to insert a message is smaller than the image size, the processing time in this method is quite fast, the image quality after inserting a message has good quality, but this method is also still good. has disadvantages, because it is not resistant to manipulation and in some images are still detected by the matlab application.Keywords: Steganography, Implementation, Modulus Function (MF), Image file.

Pemberian Umpan Balik Dalam Meningkatkan Hasil Belajar dan Minat Belajar Mahasiswa

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Seruni Seruni ◽  
Nurul Hikmah
Keyword(s):  
Information Technology ◽  
Learning Outcomes ◽  
Test Data ◽  
Random Sampling ◽  
Covariance Matrices ◽  
Test Results ◽  
Immediate Feedback ◽  
Statistics Course ◽  
Independent Variable ◽  
Descriptive Statistical Analysis

<p>The purpose of this study is to find and analyze the effect of feedback on <br />learning outcomes in mathematics and an interest in basic statistics course. The <br />population in this study are affordable Information Technology Student cademic Year 2012/2013 Semester II Indraprasta PGRI University of South Jakarta. Sample The study sample was obtained through random sampling. This study used an experimental method to the analysis using the MANOVA test. This study has three variables, consisting of: one independent variable, namely the provision of feedback (immediate and delayed), and two dependent variable is the result of interest in the study of mathematics and basic statistics course. The data was collected for the test results to learn mathematics, and a questionnaire for the interest in basic statistics course. Collected data were analyzed using the MANOVA test. Before the data were analyzed, first performed descriptive statistical analysis and test data analysis requirements (test data normality and homogeneity of covariance matrices). The results show that the learning outcomes of interest in mathematics and basic statistics course for students who are given immediate feedback higher than students given feedback delayed. <br /><br /></p>

Using Electronic Data Interchange (EDI) to Improve the Efficiency of Accounting Transactions

2002 ◽  
Vol 77 (4) ◽  
pp. 703-729 ◽  
Author(s):  
Shannon W. Anderson ◽  
William N. Lanen
Keyword(s):  
Information Technology ◽  
Processing Time ◽  
Electronic Data Interchange ◽  
Order Scheduling ◽  
Negative Effects ◽  
Electronic Data ◽  
Order Processing ◽  
Data Interchange ◽  
Using Data ◽  
Office Furniture

Electronic data interchange (EDI) is an information technology that standardizes the exchange of information between transacting parties. Using data from a major U.S. office furniture manufacturer that adopted EDI primarily to improve the efficiency of accounting transactions, we evaluate whether EDI reduces order-processing time (the time from sales order receipt to sales order scheduling) and whether this improvement is greater for more complex orders. Our measure of complexity reflects both the mix of different products the dealer orders as well as features and options the dealer selects for each product in the order. We find that EDI is associated with faster order processing, independent of complexity, and that EDI mitigates most of the negative effects of complexity on processing time. We also find that dealers learn to submit error-free orders to the manufacturer, and that previous errors provide feedback that helps dealers submit more accurate orders. However, we find only mixed evidence that order complexity impedes learning.

Dose and Image Quality Evaluation of a Dedicated Cone-Beam CT System for High-Contrast Neurologic Applications

2010 ◽  
Vol 194 (2) ◽  
pp. W193-W201 ◽  
Author(s):  
Lifeng Yu ◽  
Thomas J. Vrieze ◽  
Michael R. Bruesewitz ◽  
James M. Kofler ◽  
David R. DeLone ◽  
...  
Keyword(s):  
Image Quality ◽  
Quality Evaluation ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
High Contrast ◽  
Image Quality Evaluation ◽  
Ct System

The Detection Method of Lane Line Based on the Improved Otsu Threshold Segmentation

2015 ◽  
Vol 741 ◽  
pp. 354-358 ◽  
Author(s):  
Yang Shan Tang ◽  
Dao Hua Xia ◽  
Gui Yang Zhang ◽  
Li Na Ge ◽  
Xin Yang Yan
Keyword(s):  
Image Segmentation ◽  
Processing Time ◽  
Detection Method ◽  
Segmentation Algorithm ◽  
Test Results ◽  
Threshold Segmentation ◽  
Otsu Method ◽  
Time Requirements ◽  
Lane Line ◽  
Center Distance

For overcoming the shortage of Otsu method, proposed an improved Otsu threshold segmentation algorithm. On the basis of Otsu threshold segmentation algorithm, the gray level was divided into two classes according to the image segmentation, to determine the best threshold by comparing their center distance, so as to achieve peak line recognition under the condition of multiple gray levels. Then did experiments on image segmentation of the lane line with MATLAB by traditional Otsu threshold segmentation algorithm and the improved algorithm, the threshold of traditional Otsu threshold segmentation algorithm is 144 and the threshold of the improved Otsu threshold segmentation algorithm is 131, the processing time is within 0.453 s. Test results show that the white part markings appear more, the intersection place of white lines and the background is more clear, so this method can identify lane markings well and meet the real-time requirements.

Enhanced Three-Dimensional Color Conversion Based on Discrete Wavelet Transform

2012 ◽  
Vol 155-156 ◽  
pp. 440-444
Author(s):  
He Yan ◽  
Xiu Feng Wang
Keyword(s):  
Information Technology ◽  
Wavelet Transform ◽  
Image Reconstruction ◽  
Image Quality ◽  
Image Compression ◽  
High Performance ◽  
Three Dimensional ◽  
Discrete Wavelet ◽  
Compression Algorithms ◽  
Color Conversion

JPEG2000 algorithm has been developed based on the DWT techniques, which have shown how the results achieved in different areas in information technology can be applied to enhance the performance. Lossy image compression algorithms sacrifice perfect image reconstruction in favor of decreased storage requirements. Wavelets have become a popular technology for information redistribution for high-performance image compression algorithms. Lossy compression algorithms sacrifice perfect image reconstruction in favor of improved compression rates while minimizing image quality lossy.

scholarly journals Implementasi Usability Testing dalam Evaluasi Website Sekolah

2020 ◽  
Vol 9 (3) ◽  
pp. 420-426
Author(s):  
Susan Dian Purnamasari ◽  
Firamon Syakti
Keyword(s):  
Information Technology ◽  
Data Analysis ◽  
Data Collection ◽  
Usability Testing ◽  
The Internet ◽  
Test Results ◽  
Testing Techniques

One of the products of information technology that is common today is the school website. Where the school website is the spearhead for schools in disseminating information to related parties. The most important aspect of a website is the usability aspect because it greatly affects visitor convenience. The use of the website for disseminating information is also used by SMK Negeri Sumsel and the school's main portal on the internet. For that to see the importance of the usability aspect, this study aims to see the level of usability of the SMK Negeri Sumsel website. In measuring the level of usability, usability testing techniques are used with the stages of preparation, selecting respondents, data collection and data analysis. The test results show that the usability aspects on the website such as errors, learnability, memorability and satisfaction get good ratings while the efficiency aspects are not categorized as good.

scholarly journals SISTEM INFORMASI PENILAIAN PROPOSAL SKRIPSI BERBASIS WEB DI FAKULTAS TEKNOLOGI INFORMASI UNIVERSITAS ISLAM KALIMANTAN MUHAMMMAD ARSYAD AL BANJARI BANJARMASIN

INFO-TEKNIK ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 35
Author(s):  
Silvia Ratna
Keyword(s):  
Information Technology ◽  
Information System ◽  
Evaluation Process ◽  
Test Results ◽  
Web Based ◽  
Research Implementation ◽  
Final Project ◽  
Evaluation Information

Implementation of the final project or thesis for students is a tiered process and bound to one another. Starting from the stage of proposal submission, proposal presentation, research implementation, report making up to thesis examination students. At present, the implementation of the thesis trial evaluation at the Information Technology Faculty of the Islamic University of Kalimantan Muhammad Arsyad Al Banjari Banjarmasin is still manual, where when the presentation of proposals and panelists thesis examinations or examiners are given an assessment form using paper media. This assessment form is then recapitulated into a spreadsheet form the results are announced to students. This is less effective, especially when many students take thesis courses. For this reason, in this study, a thesis evaluation information system was created, to help all stages of the thesis evaluation process. To facilitate the accessibility of the system made web-based and integrated with existing academic systems. From the test results concluded, the system can run by the design and reports produced by the system following the processes that are running now.

scholarly journals PENGARUH PERUBAHAN STATUS, EMPLOYEE ENGAGEMENT, DAN PEMANFAATAN TEKNOLOGI INFORMASI TERHADAP KUALITAS PELAPORAN KEUANGAN

2017 ◽  
Vol 19 (4) ◽  
pp. 495
Author(s):  
Nani Yuheti Yuniatin ◽  
Noer Azam Achsani ◽  
Hendro Sasongko
Keyword(s):  
Information Technology ◽  
Employee Engagement ◽  
Financial Reporting ◽  
Financial Management ◽  
Test Results ◽  
Financial Reports ◽  
Significant Difference ◽  
Before And After ◽  
The Status

This study aimed to examine the effect of changes in status, employee engagement, and the utilization of information technology on the quality of financial reporting. Analysis of variance (ANOVA) was used to examine changes in the status of Bogor Agricultural University. Moreover we employ a multiple regression analysis to examine the effect of employee engagement and information technology in performance financial of report.  In addition, Ultrecht Work Engagement Scale (UWES) was used to examine the financial human resource mapping. The results of ANOVA test showed that there was no significant difference of the financial management of Bogor Agricultural University before and after the implementation of Public Service Board (BLU). Furthermore, multiple linear regression test results showed that the factors that affect the performance of financial reports are employee engagement and use of information technology. However, it is found that the factor that really affects the performace of financial reports is the use of information technology. Finally, the test results of the mapping showed that employee engagement of human resources staff of Bogor Agricultural University are in medium position indicating that it needs to be maintained and improved.

How Good is Too Good? A Subjective Study on Over Enhancement of Images

2021 ◽  
Vol 2021 (29) ◽  
pp. 83-88
Author(s):  
Sahar Azimian ◽  
Farah Torkamani Azar ◽  
Seyed Ali Amirshahi
Keyword(s):  
Image Quality ◽  
High Contrast ◽  
Current Image ◽  
Low Contrast ◽  
Image Dataset ◽  
Long Time ◽  
Reference Images ◽  
Subjective Study ◽  
Contrast Image

For a long time different studies have focused on introducing new image enhancement techniques. While these techniques show a good performance and are able to increase the quality of images, little attention has been paid to how and when overenhancement occurs in the image. This could possibly be linked to the fact that current image quality metrics are not able to accurately evaluate the quality of enhanced images. In this study we introduce the Subjective Enhanced Image Dataset (SEID) in which 15 observers are asked to enhance the quality of 30 reference images which are shown to them once at a low and another time at a high contrast. Observers were instructed to enhance the quality of the images to the point that any more enhancement will result in a drop in the image quality. Results show that there is an agreement between observers on when over-enhancement occurs and this point is closely similar no matter if the high contrast or the low contrast image is enhanced.

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