{"title":"ANALISIS TEKSTUR PHOTO LAMA MENGGUNAKAN FITUR TEKSTUR GRAY LEVEL CO-OCCURRENCE MATRIKS PADA PEWARNAAN CITRA OTOMATIS","authors":"M. Sipan, Rony Kartika Pramuyanti","doi":"10.26623/ELEKTRIKA.V10I1.1160","DOIUrl":"https://doi.org/10.26623/ELEKTRIKA.V10I1.1160","url":null,"abstract":"Pengolahan citra merupakan hal penting pada sebuah proses pengenalan, klasifikasi atau segmentasi atau proses lain. Satu hal yang dapat dilakukan adalah analisis fitur tekstur yang berhubungan dengan photo lama dalam hal ini photo grayscale. Objek penelitian dapat berupa photo (citra) lama dan menggunakan metode statistikal berbasis Gray Level Cooccurrence Matrix (GLCM) .GLCM adalah salah satu metode yang digunakan untuk ekstraksi fitur tekstur, beberapa tekstur yang ada di analisis menggunakan glcm dengan membandingkan fitur tektur GLCM pada photo lama dengan photo aslinya Proses pewarnaan yaitu memberikan visualisasi lebih pada sebuah objek, dapat berupa citra atau video monokrom dengan tujuan untuk memberikan detail dan kejelasan dari citra atau video yang diwarnai. Penelitian membahas citra grayscale untuk diwarnai, kemudian mencari nilai-nilai fitur tekstur GLCM. Besar kecilnya nilai fitur yang diperoleh dari perhitungan digunakan untuk mencari seberapa besar nilai error yang secara tidak langsung menunjukan seberapa besar kemiripan citra tersebut. Pengukuran keberhasilan besar kecilnya kemirirpan menggunakan metode Mean Square Error (MSE) dan Mean Absolute Error (MAE).","PeriodicalId":31937,"journal":{"name":"Jurnal Pengembangan Rekayasa dan Teknologi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45070736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Daru, Khoirudin Khoirudin, Muhammad Faizal Agung Widodo
{"title":"AHP COMPARATIVE JUDGEMENT ON MOBILE COMMERCE COMPUTER SHOP APPLICATION IN SEMARANG CITY USING GOOGLE MAPS API BASED ANDROID","authors":"A. Daru, Khoirudin Khoirudin, Muhammad Faizal Agung Widodo","doi":"10.26623/JPRT.V13I2.937","DOIUrl":"https://doi.org/10.26623/JPRT.V13I2.937","url":null,"abstract":"In terms of activities in computer stores, many potential customers who come, then go home without making a transaction. This happens because consumers who come to the store want to know the price information, brand stock, and promotion first and then compare it with other stores. The decision recommendations generated by AHP are approaching expectations as they are examined from different perspectives and this method is very applicable to anyone decision makers because input is not only based on logic in general, but also intuition. The prototyping model implements rapid development and testing of the working model of new applications through repeated interaction processes. The object priority used based on AHP Comparative Judgment inference system calculation is (1) stock; (2) price; (3) distance (location). the process of comparison between criteria has been performed in a consistent manner consistent with the random consistency index of the normative analytical hierarchy process comparative judgment matrix. So that the output list that is displayed to the user can be used as the best reference product selection. Implementation of computer information system store application in Semarang City with AHP (Analyitical Hierarchy Processs) Comparative Judgment method can be accessed by Android users to recommend products to be purchased based on the criteria of availability of goods, price and distance practically anytime and anywhere.","PeriodicalId":31937,"journal":{"name":"Jurnal Pengembangan Rekayasa dan Teknologi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47869928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EKSTRAKSI ANTOSIANIN KULIT MELINJO MERAH DAN STABILITAS WARNANYA PADA BERBAGAI LAMA PEMANASAN","authors":"Elly Yuniarti Yuniarti Sani, Bambang Kunarto","doi":"10.26623/JPRT.V13I2.928","DOIUrl":"https://doi.org/10.26623/JPRT.V13I2.928","url":null,"abstract":"<p>Pigmen merah antosianin kulit melinjo bersifat antioksidan dan lebih aman dibandingkan dengan pigmen sintetik. Untuk mengekstraksi pigmen antosianin kulit melinjo perlu dipilih pelarut yang aman dan menghasilkan rendemen tinggi dengan kualitas warna dan aktivitas antioksidan yang baik. Tujuan penelitian ini adalah untuk mengekstrak antosianin kulit melinjo merah menggunakan berbagai rasio etanol: air dan mengetahui stabilitas warna dan aktivitas antioksidatif antosianin pada berbagai lama pemanasan. Ekstraksi dilakukan menggunakan rasio pelarut etanol:air dengan perbandingan <strong>(</strong><strong>100</strong><strong>:</strong><strong>0</strong><strong>); (</strong><strong>75:25</strong><strong>); (</strong><strong>50:50</strong><strong>); (</strong><strong>25:75</strong><strong>); (</strong><strong>0:100</strong><strong>)</strong>. Ekstrak antosianin dianalisis rendemen, antosianin dan aktifitas antioksidannya. Hasil terbaik dipakai sebagai penelitian tahap kedua dengan mengukur stabilitas warna antosianin dan aktivitas antioksidatifnya berbagai lama pemanasan <strong>(10, 20, 30, 40 dan 50 menit)</strong>. Hasil penelitian menunjukkan bahwa pelarut etanol dan air dengan rasio <strong>(100:0)</strong>) menghasilkan ekstrak antosianin kulit melinjo merah terbaik dengan rendemen <strong>12,95%</strong>, kadar total antosianin <strong>43,52</strong> mg/L dan aktivitas antioksidan (penghambatan DPPH) <strong>66,29%</strong>. Ekstrak antosianin kulit merah antosianin stabil pemanasan 10-30 menit.</p>","PeriodicalId":31937,"journal":{"name":"Jurnal Pengembangan Rekayasa dan Teknologi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46330362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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