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All Journal Jurnal Mantik Jurnal Teknimedia: Teknologi Informasi dan Multimedia
Wahyu Nugroho
MTI Universitas Amikom Yogyakarta
Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Engineering Languange, Linguistic, Communication & Media

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SEGMENTASI PASAR KOPI MENGGUNAKAN METODE KNN DI INDONESIA Muhamad Maksum Hidayat; Wahyu Nugroho; Arief Setyanto
TEKNIMEDIA: Teknologi Informasi dan Multimedia Vol. 1 No. 1 (2020): Mei 2020
Publisher : Badan Penelitian dan Pengabdian Masyarakat (BP2M) STMIK Syaikh Zainuddin NW Anjani

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.951 KB) | DOI: 10.46764/teknimedia.v1i1.12

Abstract

Coffee is one of the most widely consumed plantation commodities in Indonesia and has great opportunities to be developed, especially in the field of market development. The thing that becomes an obstacle for coffee entrepreneurs is the right segmentation of the coffee market with the vast Indonesian state. This study aims to segment the coffee market in Indonesia by utilizing coffee image data available on Instagram social media with image classification using the K-Nearest Neighbor algorithm and histogram feature extraction, so as to determine the exact coffee market segmentation in Indonesia.
Implementation Of Message Security In Pictures Using Playfair Chiper Algorithm: Implementation Of Message Security In Pictures Using Playfair Chiper Algorithm Muhamad Maksum Hidayat; Wahyu Nugroho; Dony Ariyus
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (724.285 KB)

Abstract

Cryptography implementations are now widely solved by cryptanalyst in the process of securing a messaging system, and therefore the need to add a method of steganography. Steganography is the art of hiding secret messages in any medium other than the sender and receiver that no one would know or realize there is a secret message in the media is sent. In this journal, conducted a study on the implementation of cryptography in the form of encryption and decryption of a message using the Playfair cipher algorithm is modified by letter hijaiyah. Then the implementation of steganography in a PNG image media, the testing process is done by sending the media image using email, whatsapp, facebook, and telegram. research aims to make the encryption process stronger and more secure,
Co-Authors Arief Setyanto Dony Ariyus Muhamad Maksum Hidayat Muhamad Maksum Hidayat