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Cocoa bean quality identification using a computer vision-based color and texture feature extraction Basri, Basri; Indrabayu, Indrabayu; Achmad, Andani; Areni, Intan Sari
International Journal of Advances in Intelligent Informatics Vol 11, No 1 (2025): February 2025
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/ijain.v11i1.1609

Abstract

The current pressing issue in the downstream processing of cocoa beans in cocoa production is a strict quality control system. However, visually inspecting raw cocoa beans reveals the need for advanced technological solutions, especially in Industry 4.0. This paper introduces an innovative image-processing approach to extracting color and texture features to identify cocoa bean quality. Image acquisition involved capturing video with a data acquisition box device connected to a conveyor, resulting in image samples of Good-quality and Poor-quality of non-cutting cocoa beans dataset. Our methodology includes multifaceted advanced pre-processing, sharpening techniques, and comparative analysis of feature extraction methodologies using Hue-Saturation-Value (HSV) and Gray Level Cooccurrence Matrix (GLCM) with correlated features. This study used 15 features with the highest correlation. Machine Learning models using Support Vector Machine (SVM) with some parameter variation value alongside an RBF kernel. Some parameters were measured to compare each approach, and the results show that pre-processing without sharpening achieves better accuracy, notably with the HSV and GLCM combination reaching 0.99 accuracy. Adequate technical lighting during data acquisition is crucial for accuracy. This study sheds light on the efficacy of image processing in cocoa bean quality identification, addressing a critical gap in industrial-scale implementation of technological solutions and advancing quality control measures in the cocoa industry.
Implementation of Aquatic Environmental Monitoring Technology in Solar-Powered Seaweed Cultivation to Optimize the Productivity of the Masempo Dalle Fishermen Group, Pinrang Regency Areni, Intan Sari; Amir, Ashadi; Mangarengi, Nur An-Nisa Putry
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 8 No 2 (2025): Collaboration for Accelerated Community Achievement
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v8i2.614

Abstract

Watang Suppa Village, Suppa Sub-district, Pinrang Regency has great potential for seaweed cultivation; however, the Masempo Dalle Fishermen Group still faces several challenges, particularly the limitation in monitoring water environmental conditions in real-time. Conventional methods based on visual observation and empirical experience result in low accuracy in assessing cultivation site suitability, leading to fluctuating yields and economic losses. This Community Service Program aims to enhance seaweed farming productivity through the implementation of an Internet of Things (IoT)-based water quality monitoring system powered by solar energy, while also improving fishermen’s knowledge and skills in technology utilization. The implementation method consisted of socialization, training, two phases of technology trials, and monitoring and evaluation. The results indicated a significant increase in fishermen’s knowledge, such as water quality parameter understanding improving from 42% to 78%, readiness to adopt technology from 40% to 76%, and basic IoT comprehension from 35% to 75%. Technical capabilities also improved, with the ability to read sensor data rising from 38% to 78%, device installation understanding from 32% to 70%, and maintenance skills from 30% to 68%. The technology trials successfully provided more accurate water quality data and enabled fishermen to monitor cultivation sites in real-time. This program is expected to serve as an initial step toward building technological independence in coastal communities and promoting sustainable aquaculture practices.
Socialization of IoT Technology Utilization in Monitoring and Analysis of Electricity Usage among Students at SMKN 10 Makassar Mayasari, Fitriyanti; Muslimin, Zaenab; Ahmad, Andani; Areni, Intan Sari; ., Dewiani; Gunadin, Indar Chaerah; Salam, A. Ejah Umraeni; ., Wardi; Anshar, Muh.; Achmad, Andini Dani
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 8 No 2 (2025): Collaboration for Accelerated Community Achievement
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v8i2.638

Abstract

The Community Service Program (PkM) conducted by the Department of Electrical Engineering aims to enhance the literacy and skills of students at SMKN 10 Makassar in understanding the concept of energy monitoring and the application of Internet of Things (IoT) technology as an innovative solution for energy management systems. The main problem identified in the school is the low awareness and understanding of energy efficiency, as well as the lack of monitoring tools capable of displaying real-time energy consumption data. Through socialization and training activities based on microcontroller technology, students were introduced to the working principles of current and voltage sensors, data transmission via the internet, and digital visualization of electrical energy consumption through IoT-based platforms. The activity evaluation was carried out using pre-test and post-test methods involving 25 students from the Electrical Engineering Department to measure comprehension improvement. The results showed a significant increase in two main aspects: understanding of the basic concepts of energy monitoring, which rose from 60% to 96%, and understanding of the integration of IoT in energy monitoring systems, which increased from 20% to 88%. These findings demonstrate that implementing IoT-based learning not only broadens students’ insights into energy efficiency but also strengthens their vocational competencies in electrical engineering through the application of intelligent technologies relevant to the needs of modern industry.
Hybrid Deep Learning Approach For Stress Detection Model Through Speech Signal Chyan, Phie; Achmad, Andani; Nurtanio, Ingrid; Areni, Intan Sari
JOIV : International Journal on Informatics Visualization Vol 7, No 4 (2023)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62527/joiv.7.4.2026

Abstract

Stress is a psychological condition that requires proper treatment due to its potential long-term effects on health and cognitive faculties. This is particularly pertinent when considering pre- and early-school-age children, where stress can yield a range of adverse effects. Furthermore, detection in children requires a particular approach different from adults because of their physical and cognitive limitations. Traditional approaches, such as psychological assessments or the measurement of biosignal parameters prove ineffective in this context. Speech is also one of the approaches used to detect stress without causing discomfort to the subject and does not require prerequisites for a certain level of cognitive ability. Therefore, this study introduced a hybrid deep learning approach using supervised and unsupervised learning in a stress detection model. The model predicted the stress state of the subject and provided positional data point analysis in the form of a cluster map to obtain information on the degree using CNN and GSOM algorithms. The results showed an average accuracy and F1 score of 94.7% and 95%, using the children's voice dataset. To compare with the state-of-the-art, model were tested with the open-source DAIC Woz dataset and obtained average accuracy and F1 scores of 89% and 88%. The cluster map generated by GSOM further underscored the discerning capability in identifying stress and quantifying the degree experienced by the subjects, based on their speech patterns