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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Jurnal Masyarakat Informatika MATEMATIKA JURNAL SISTEM INFORMASI BISNIS Journal of Informatics and Technology Jurnal Sains dan Teknologi Semantik TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Ilmiah Kursor Jurnal Teknologi Informasi dan Ilmu Komputer JOIV : International Journal on Informatics Visualization Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Penelitian Pendidikan IPA (JPPIPA) ComTech: Computer, Mathematics and Engineering Applications Jurnal Guru Dikmen & Diksus Indian Journal of Forensic Medicine & Toxicology Journal of Social Research Engagement: Jurnal Pengabdian Kepada Masyarakat
Aris Sugiharto
Program Studi Ilmu Komputer, Universitas Diponegoro, Semarang
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Journal : MATEMATIKA

 1 
WATERMARKING PADA BEBERAPA KELUARGA WAVELET Sugiharto, Aris; Sarwoko, Eko Adi
MATEMATIKA Vol 7, No 3 (2004): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

Teknik Watermarking banyak digunakan untuk melindungi data digital dari upaya pembajakan dalam bentuk penggandaan secara illegal. Banyak metode yang sudah dikembangkan baik dalam domain spasial, frekuensi maupun domain wavelet. Dalam tulisan ini sistem watermarking yang dibahas adalah domain wavelet dengan menggunakan transformasi wavelet diskrit (discrete wavelet transform) yang diujikan pada beberapa keluarga wavelet dengan menggunakan faktor skala yang berbeda. Kata kunci : watermarking, wavelet, skala
KETAHANAN WATERMARKING TERHADAP SERANGAN KOMPRESI JPEG Sugiharto, Aris; Wibawa, Helmie Arif
MATEMATIKA Vol 8, No 1 (2005): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

Watermarking is one of the methods that proposed to protected digital data from illegally copy.  A lot of technic to destroy watermarking that inserted to digital data, one of them are JPEG compression. In this research will be focus as far JPEG compression can influence watermarking integrated especially at similarity test before and after digital data have JPEG compression attact.  
MODEL DIFRAKSI SINYAL PADA BIDANG MIRING TAJAM suhartono, Suahrtono; Kushartantya, Kushartantya; sugiharto, Aris
MATEMATIKA Vol 11, No 3 (2008): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

Signal is a wave that can be expressed by physical phenomenon. Mathematically signal wave can be represented as a function of single or many independent variables, for example signal wave over hill or mountain as a function of distance or time. In fact, signal spreading as a wave have many attenuation, for example is caused by difraction  when the signal over hill or building. The purpose of this writing scientific jurnal is to make a model of knife edge difraction, that seen by two cases, such as transmitter has same height to receiver and transmitter has different height to receiver. Computation result show that transmitter has same height to receiver then the increasing of value of v cause reduction of difraction variable. And  in case of the height transmitter and receiver is not the same, the degradation of v variable has an effect to the increasing of difraction variable.  
Co-Authors Abd. Rasyid Syamsuri Adi Wibowo Afry Rachmat Agus Suwandono Andi Gunawan Antariksa, Muhammad Deagama Surya Ari Wibawa Budi Santosa Arief Hidayat Arif Wibawa, Helmie Ary Setyadi Bagoes Widjanarko Bayu Surarso Bayu Surarso Budi Warsito Budi Warsito Dedy Kurniawan Hadi Putra Didit Suprihanto, Didit Eko Adi Sarwoko eko adi sarwoko Eko Didik Widianto Eko Didik Widianto Eko Nur Hidayat Eko Prasetiawan Fajar Hari Prasetyo Fajar Nugraha Ganis Khufad Arridho Hanif Setiawan, Syariful Helmi Arif Wibawa Helmie Arif Wibawa Helmie Arif Wibawa Henny Indriyawati Hidayat, Agung Rahmad Ikhthison Mekongga Indriyati Indriyati Irfan Pradipta Juwanda, Farikhin Kamal Maulana Kushartantya Kushartantya Kusworo Adi Lusiana Kristiyanti Lutfi Rinanto Mochammad Hosam Muhammad Malik Hakim, Muhammad Malik Mustafid Mustafid Nazla Nurmila Nikmah Rahmawati Pradhitya Nur Diyah S Pramudita Eka Hananto Prastio, Wahyu Tedi Priyo Sidik Sasongko R Rizal Isnanto Ragil Saputra Rahmat Gernowo Rambing, Danni Riyana Putri, Fayza Nayla Rizki Saputra, Naufal Roby Hanintyo Nursio Sakti Rukun Santoso Sembiring, Rinawati Septya Maharani, Septya Sinta Tridian Galih Sugiyamto Sugiyamto suhartono, Suahrtono Sukmawati Nur Endah Supriyono Supriyono Suryo Hartanto Sutikno Sutikno Sutopo Patria Jati Tarno Tarno Toni Prahasto Victor Gayuh Utomo Wahyu Adi, Prajanto Wahyu Krisna Hidayat Wahyu Krisna Hidayat Wahyudi Setiawan widowati widowati Wijayanto, Ahmad Yudie Irawan Yulianto Prabowo Yusuf Fahmi Adiputera