2006
DOI: 10.12928/telkomnika.v4i1.1240
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Implementasi Watermarking Untuk Penyembunyian Data Pada Citra Dalam Domain Frekuensi Menggunakan Discrete Cosine Transform

Abstract: Abstrak Kata kunci : HAKI, watermarking, Discrete Cosine Transform (DCT), PSNR PENDAHULUANAda beberapa faktor yang membuat penggunaan data digital semakin marak dan disukai, yaitu [5] : a. mudah diduplikasi dan hasilnya sangat mirip dan bahkan bisa sama dengan aslinya. b. murah untuk penduplikasian dan penyimpanannya. c. mudah disimpan untuk kemudian diproses atau diolah lebih lanjut. d. mudah untuk didistribusikan baik melalui media fisik (disk) maupun media jaringan seperti Internet, dan lain-lain. Segala ke… Show more

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Cited by 3 publications
(4 citation statements)
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“…Watermarking is somewhat different from watermarks on banknotes. Watermarks on banknotes can still be seen by the naked human eye (perhaps in certain paper positions), but watermarking on digital media here is intended not to be felt by humans without the tools of digital processing machines such as computers and the like [3]. Watermarking takes advantage of the flaws of the human sensory system, such as the eyes and ears.…”
Section: Watermarkingmentioning
confidence: 99%
“…Watermarking is somewhat different from watermarks on banknotes. Watermarks on banknotes can still be seen by the naked human eye (perhaps in certain paper positions), but watermarking on digital media here is intended not to be felt by humans without the tools of digital processing machines such as computers and the like [3]. Watermarking takes advantage of the flaws of the human sensory system, such as the eyes and ears.…”
Section: Watermarkingmentioning
confidence: 99%
“…This technique uses lossy and lossless depending on bandwidth requirements. This technique supports large images [3], [4].…”
Section: Jpeg Compressionmentioning
confidence: 99%
“…PSNR (Peak Signal Noise to Ratio) PSNR is a parameter used to determine the validity / quality of the compressed image. The PSNR calculation uses the square of the maximum value divided by the MSE value [4], [8], [10]. The calculation of the PSNR value in decibels is expressed in the following equation:…”
Section: Measuring Error Value In Image Compressionmentioning
confidence: 99%
“…Watermarking atau tanda air dapat diartikan sebagai suatu teknik penyembunyian data atau informasi "rahasia" ke dalam suatu data lainya untuk "ditumpangi" [2]. Jadi kalau dilihat secara kasat mata data atau informasi yang disisipkan kedalam citra digital tidak terlihat dan tahan terhadap serangan berupa pengolahan citra digital serta tidak menghambat pendistribusian.…”
Section: Metode Penelitianunclassified