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All Journal IJCCS (Indonesian Journal of Computing and Cybernetics Systems) JUSIFO : Jurnal Sistem Informasi Jurnal Informatika Global Journal of Information Systems and Informatics Indonesian Journal of Data and Science Jurnal Digital Teknologi Informasi Jurnal FASILKOM (teknologi inFormASi dan ILmu KOMputer) Journal of Computer and Information Systems Ampera Journal of Software Engineering Ampera Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) Jurnal Software Engineering and Computational Intelligence Prosiding Seminar Nasional Unimus International Journal of Artificial Intelligence in Medical Issues
Dian Hafidh Zulfikar
Universitas Islam Negeri Raden Fatah Palembang
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Electrical & Electronics Engineering Engineering Health Professions Mathematics Medicine & Pharmacology Nursing Public Health

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Journal : Jurnal Informatika Global

 1 
Keamanan Pesan Rahasia Menggunakan Steganografi DCT (Discrete Cosine Transform) pada Citra JPEG Dian Hafidh Zulfikar
Jurnal Informatika Global Vol 9, No 2
Publisher : UNIVERSITAS INDO GLOBAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (513.206 KB) | DOI: 10.36982/jiig.v9i2.585

Abstract

Abstract The  least significant-bit (LSB) based techniques are very popular for steganography in spatial domain. The simplest LSB technique simply replaces the LSB in the cover image with the  bits from secret information. Further advanced techniques use some criteria to identify the pixels in which LSB(s) can be replaced with the bits of secret information. In Discrete Cosine Transform (DCT) based technique insertion of secret information in carrier depends on the DCT coefficients. Any DCT coefficient value above proper threshold is a potential place for insertion of secret information. Keywords : Discrete Cosine Transform (DCT), steganography, secret message AbstrakPada steganografi domain spasial, teknik least significant-bit (LSB) merupakan teknik yang paling banyak digunakan pada steganografi. Teknik yang sederhana yang hanya mengubah nilai LSB pada cover image dengan nilai bit pesan rahasia, atau dengan teknik yang lebih baik lagi yaitu dengan menentukan bit-bit LSB mana yang akan dilakukan pergantian nilai bit. Lain halnya dengan metode Discrete Cosine Transform (DCT), teknik steganografi ini akan menyembunyikan informasi rahasia tergantung dari nilai Koefisien DCT. Kata Kunci : Steganografi, DCT, Citra, JPEG, Pesan Rahasia
Co-Authors Agus Harjoko Aminullah Imal Alfresi Anggi Sefti Utami Aris Wahyu Murdiyanto Ayu Jayanti Bahriyanto Catur Eri Gunawan Dini Ken Rifarsih Effan Najwaini Fathiyah Nopriani Fenny Purwani Hamada Zein Hermanto Maria, ⁠⁠Eny Masdalia Julya Pranita Nicodemus Mardanus Setiohardjo Orik Dwi Pebriani Perni Bunga Lestari Poetro, Bagus Satrio Waluyo Putra, Anton Putri Ananda Destary Setapati, Gerry Siregar, Alda Cendekia Siska Lestari Sri Rahayu Sunia Raharja, I Made