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Deteksi Image Splicing Pada Citra dengan Metode Discrete Cosine Transform (DCT) dan Scale Invariant Feature Transform (SIFT)

Authors: Endina Putri Purwandari; Arie Vatresia; Sudarti Siburian;

Deteksi Image Splicing Pada Citra dengan Metode Discrete Cosine Transform (DCT) dan Scale Invariant Feature Transform (SIFT)

Abstract

Pemalsuan terhadap citra digital sangat sering terjadi pada perkembangan teknologi sekarang ini. Image splicing adalah salah satu metode yang paling umum yang digunakan untuk melakukan kegiatan pemalsuan citra. Tujuan penelitian ini adalah membangun aplikasi deteksi image splicing pada citra dengan metode Discrete Cosine Transform (DCT) dan Scale Invariant Feature Transform (SIFT). Penelitian tentang deteksi image splicing dengan kombinasi metode DCT dan SIFT belum pernah dilakukan sebelumnya. Aplikasi ini meng- convert citra dari RGB ke bentuk graysacle . Kemudian menerapkan metode Discreate Cosine Transform untuk mencari frekuensi pada citra grayscale lalu menggunakan metode Scale Invarian Feature Transform untuk mendeteksi keypoint yang sama pada citra, dan menerapkan metode RANSAC untuk menghilangkan outlier pada citra. Aplikasi ini dibangun menggunakan bahasa pemprograman matlab. Data citra yang digunakan dalam penelitian ini ada sebanyak 20 citra, yaitu 10 citra dari internet dan 10 citra koleksi pribadi. Hasil pengujian fungsional sistem melalui metode Black Box telah berhasil 100 % dengan skenario yang telah dibuat. Berdasarkan hasil pengujian yang telah dilakukan nilai akurasi pada deteksi image splicing dengan citra dari internet sebesar 100%, dan nilai akurasi pada deteksi dengan citra koleksi pribadi sebesar 100%. Hasil dari penelitian ini diharapkan dapat digunakan oleh masyarakat untuk membedakan citra yang asli dengan citra yang mengalami pemalsuan image splicing. Kata Kunci: pemalsuan citra, image splicing , keypoint , DCT,SIFT, RANSAC

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
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