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All Journal Jurnal Teknologi Dan Sistem Informasi Bisnis Neptunus: Jurnal Ilmu Komputer dan Teknologi Informasi
Gimnastiar, Alfin
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Computer Science & IT Electrical & Electronics Engineering

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Implementasi Watermarking Pada Gambar Menggunakan Matlab Untuk Mencegah Plagiarisme Laporan Praktikum Gimnastiar, Alfin; Harahap, Lailan Sofinah; Abdillah, Rizky
Jurnal Teknologi Dan Sistem Informasi Bisnis Vol 7 No 3 (2025): Juli 2025
Publisher : Prodi Sistem Informasi Universitas Dharma Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jteksis.v7i3.1970

Abstract

The ease of digital data exchange, especially images, has increased the risk of plagiarism in academic environments, particularly in student laboratory reports. To address this issue, this study implements a text watermarking technique directly on digital images using the insertText() function in MATLAB. This method falls under the category of visible watermarking, where identity information—such as the student’s name—is embedded in the image to be visually recognizable. The process involves several stages, including reading the image, defining the watermark text, configuring the position and visual appearance, and saving the final result. Experimental results show that the watermark can be effectively embedded without disrupting the main content of the image and remains readable even after basic manipulations such as rotation, resizing, or format conversion. This method is considered simple, efficient, and suitable for academic purposes, promoting academic integrity and preventing plagiarism among students.
Pengembangan Prototipe Aplikasi Peminjaman dan Pengembalian Barang Menggunakan Model SDLC Gimnastiar, Alfin; Gading, Rafli Arya
Neptunus: Jurnal Ilmu Komputer Dan Teknologi Informasi Vol. 4 No. 1 (2026): Februari: Neptunus: Jurnal Ilmu Komputer Dan Teknologi Informasi
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/neptunus.v4i1.1304

Abstract

The management of borrowing and returning goods in government institutions is still largely carried out manually, which often gives rise to various problems, such as difficulties in tracking borrowing histories, the high risk of recording errors, and the lack of transparency regarding the availability of goods. This condition indicates the need for support from an information system that is capable of assisting the recording process and inventory management in a more structured, systematic, and easily monitored manner. This research aims to design a prototype of a goods borrowing and returning application as an initial solution to these problems as well as a preliminary representation of a system that can be further developed by the institution. The research method used is a Research and Development (R&D) approach with a prototype Software Development Life Cycle (SDLC) model, which allows system development to be carried out gradually and flexibly in accordance with user needs. Data collection was conducted through observation and interviews to obtain an overview of the ongoing work processes and to identify the required system needs. The collected data were then analyzed as the basis for designing the system workflow, data structure, and user interface design. The results of this research are in the form of an application prototype that represents the main system features, including goods borrowing, goods returning, availability checking, goods data management, and report generation.
Co-Authors Abdillah, Rizky Gading, Rafli Arya Harahap, Lailan Sofinah