PENDETEKSIAN TEPI CITRA DIGITAL DENGAN LOGIKA FUZZY

Dedy Kurniawan Hadi Putra; Kushartantya Kushartantya; Aris Sugiharto

doi:10.14710/jmasif.4.8.8442

DOI: https://doi.org/10.14710/jmasif.4.8.8442

PENDETEKSIAN TEPI CITRA DIGITAL DENGAN LOGIKA FUZZY

Dedy Kurniawan Hadi Putra , Kushartantya Kushartantya, Aris Sugiharto

Published: 31 Oct 2013.

Editor(s): Retno Kusumaningrum

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Abstract

Metode deteksi tepi citra digital yang sering umum digunakan oleh metode klasik seperti Sobel dan prewit. Selain deteksi tepi dengan metode klasik, ada metode lain, yaitu deteksi tepi dengan logika fuzzy. Logika fuzzy mampu mengatasi ambiguitas dan ketidakjelasan gambar dengan benar, seperti perbedaan membatasi tingkat kecerahan gambar. Logika Fuzzy dianggap mampu menangani proses deteksi tepi. Deteksi tepi citra digital dengan logika fuzzy dimulai dengan mengelompokkan tingkat kecerahan pada set kelompok kabur yaitu hitam dan putih. Kelompok ini membentuk himpunan fuzzy fungsi keanggotaan fuzzy. Beberapa aturan yang digunakan sebagai filter dengan ukuran 3x3 piksel, untuk menentukan tepi, piksels hitam dan putih, dinyatakan dalam fungsi keanggotaan fuzzy output. Proses defuzzifikasi dilakukan untuk mendapatkan nilai output dalam bentuk tingkat kecerahan matriks. Thresholding digunakan untuk memisahkan piksel tepi dengan piksel hitam dan putih. Tepi piksel ditunjukkan dengan nilai 1 dan piksel hitam atau putih dengan nilai 0. Citra output menunjukkan tepi gambar input.

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Keywords: citra digital, deteksi tepi, logika fuzzy, aturan inferensi fuzy

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Section: Research Article

Language : EN

In Vol 4, No 8 (2013): JURNAL MASYARAKAT INFORMATIKA

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