C
Christy Atika Sari
Publications - 143
Citations - 1260
Christy Atika Sari is an academic researcher. The author has contributed to research in topics: Encryption & Steganography. The author has an hindex of 17, co-authored 124 publications receiving 789 citations.
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Proceedings ArticleDOI
Tomatoes classification using K-NN based on GLCM and HSV color space
Oktaviana Rena Indriani,Edi Jaya Kusuma,Christy Atika Sari,Eko Hari Rachmawanto,De Rosal Ignatius Moses Setiadi +4 more
TL;DR: The proposed method can achieve the highest accuracy and can be classified to determined the maturity level of tomatoes by using K-Nearest Neighbour (K-NN) one of basic and simple classification method which utilizes the distance as a comparison of the similarity level of the image.
Journal ArticleDOI
Secure Image Steganography Algorithm Based on DCT with OTP Encryption
TL;DR: Combined steganography using discrete cosine transform (DCT) and cryptography using the one-time pad or vernam cipher implemented on a digital image obtained satisfactory results with PSNR and NCC high and resistant to JPEG compression and median filter.
Proceedings ArticleDOI
Face Recognition using FaceNet (Survey, Performance Test, and Comparison)
Ivan William,De Rosal Ignatius Moses Setiadi,Eko Hari Rachmawanto,Heru Agus Santoso,Christy Atika Sari +4 more
TL;DR: This research aims to conduct surveys, test performance, and compare the accuracy of the results of recognizing the face of the FaceNet method with various other methods that have been developed previously, and showed excellent results and was superior to other methods.
Journal ArticleDOI
A Combination of Inverted LSB, RSA, and Arnold Transformation to get Secure and Imperceptible Image Steganography
TL;DR: This paper proposes combing Arnold’s transformation with RSA and subsequently embedding the result in a cover image with inverted two-bit LSB steganography, which replaces two bits in the bit plane of the cover images with message bits, which can provide twice the capacity of the previous method.
Proceedings ArticleDOI
CBIR for classification of cow types using GLCM and color features extraction
T. Sutojo,De Rosal Ignatius Moses Setiadi,Pungky Septiana Tirajani,Christy Atika Sari,Eko Hari Rachmawanto +4 more
TL;DR: In this article, content-based image retrieval (CBIR) is applied to help the problem of distinguishing or knowing the type of cow, which can be used to distinguish or know the cow type.