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All Journal Jurnal Ilmu Komputer dan Informasi Strength : Jurnal Penelitian Teknik Mesin
Gigih Prasetyo
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Computer Science & IT Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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MULTITHRESHOLDING IN GRAYSCALE IMAGE USING PEA FINDING APPROACH AND HIERARCHICAL CLUSTER ANALYSIS Cahyono Cahyono; Gigih Prasetyo; Adrianus Yoza; Ramadhan Hani
Jurnal Ilmu Komputer dan Informasi Vol 7, No 2 (2014): Jurnal Ilmu Komputer dan Informasi (Journal of Computer Science and Information)
Publisher : Faculty of Computer Science - Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (559.42 KB) | DOI: 10.21609/jiki.v7i2.261

Abstract

Abstract Image segmentation is typically used to distinguish objects that exist in an image. However, it remains difficult to accommodate favourable thresholding in multimodal image histogram problem with specifically desired number of thresholds. This research proposes a novel approach to find thresholds in multimodal grayscale image histogram. This method consists of histogram smoothing, identification of peak(s) and valley(s), and merging process using hierarchical cluster analysis. Using five images that consisted of grayscale and converted-to-grayscale images. This method yields maximum value of accuracy, precision, and recall of 99.93%, 99.75%, and 99.75% respectively. These results are better than the similar peak finding method in multimodal grayscale image segmentation.
ANALISA PANAS PADA SISTEM TRANSMISI MESIN PENCACAH KERTAS MENGGUNAKAN FEA Aji Prasetyo; Joni Arif; Gigih Prasetyo; Bastian Putra, Ilham; Syarifatunnajah, Syifa
Strength : Jurnal Penelitian Teknik Mesin Vol. 1 No. 3 (2024): Desember 2024
Publisher : Universitas Pamulang Serang

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Abstract

Mesin pemotong kertas merupakan mesin yang berfungi sebagai alat pemotong kertas dengan hasil potongan sesuai rancangan (kebutuhan). Pada umumnya mesin pemotong kertas dapat dibedakan menjadi dua tipe pemotongan, yaitu pemotonganlurus (strip cut) dan potongan kecil (cross cut). Transmisi pada pulley mesin pencacah kertas di desain dengan software solidworks kemudian disimulasikan meggunakan software ansys dengan tujuan menganalisis data. Tujuan penelitian ini untuk menganalisis data Steady-state thermal, Convectoin, Temperatur, Directional Heat Flux . Total heat flux Transmisi pada pulley mesin pencacah kertas kemudian diperoleh. bahwa temperatur maksimal yaitu 50.002 W/mm2 dan temperatur minimal pada pulley yaitu 22.031W/mm2 dengan suhu akhir 50oc. dimana directional heat flux tertinggi sebesar 0,35844 W/mm2 dan directional heat flux terendah sebesar - 0.51163 W/mm2. total heat flux dengan menunjukan bahwa temperatur maksimal yaitu 0,95737 W/mm2 dan temperatur minimal pada pulley yaitu 0,288149515W/mm2. Kata kunci: transmisi, thermal, pencacah kertas
Co-Authors Adrianus Yoza Aji Prasetyo, Aji Bastian Putra, Ilham Cahyono Cahyono Joni Arif Ramadhan Hani Syarifatunnajah, Syifa