scholarly journals A High Quality Steganography Method with Twenty Five-Pixel Value Differencing

2019 ◽  
Vol 15 (10) ◽  
pp. 1538-1545
Author(s):  
Rojali ◽  
Ford Lumban Gaol ◽  
Edi Abdurahman ◽  
Benfano Soewito
Keyword(s):  
High Quality ◽  
Pixel Value ◽  
Pixel Value Differencing

Steganographic data hiding in image processing using predictive differencing

2012 ◽  
Vol 20 (2) ◽  
Author(s):  
C. Weng ◽  
H. Tso ◽  
S. Wang
Keyword(s):  
Image Processing ◽  
Data Hiding ◽  
Predictive Value ◽  
Experimental Result ◽  
Embedding Capacity ◽  
High Quality ◽  
Pixel Value ◽  
Pixel Value Differencing

AbstractIn this paper, we propose a stenography scheme based on predictive differencing to embed data in a grey-image. In order to promote the embedding capacity of pixel-value differencing (PVD), we use differencing between a predictive value and an input pixel as the predictive differencing to embed the message where a predictive value is calculated by using various predictors. If the predictive differencing is large, then it means that the input pixel is located in the edge area and, thus, has a larger embedding capacity than the pixel in a smooth area. The experimental result shows that our proposed scheme is capable of providing greater embedding capacity and high quality of stego-images then previous works. Furthermore, we have also applied various predictors to evaluate our proposed scheme.

A high quality steganographic method with pixel-value differencing and modulus function

2008 ◽  
Vol 81 (1) ◽  
pp. 150-158 ◽  
Author(s):  
Chung-Ming Wang ◽  
Nan-I Wu ◽  
Chwei-Shyong Tsai ◽  
Min-Shiang Hwang
Keyword(s):  
Modulus Function ◽  
High Quality ◽  
Pixel Value ◽  
Pixel Value Differencing

TEKNIK PENYEMBUNYIAN PESAN TEKS TERENKRIPSI ALGORITMA MERKLE-HELLMAN KNAPSACK MENGGUNAKAN METODE PIXEL VALUE DIFFERENCING KE DALAM CITRA DIGITAL

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Agung Lestari ◽  
Abdul Sani Sembiring ◽  
Taronisokhi Zebua
Keyword(s):  
Digital Image ◽  
Data Security ◽  
Object Based ◽  
Pixel Value ◽  
Attack Data ◽  
Pixel Value Differencing ◽  
Knapsack Algorithm ◽  
Cryptographic Techniques

Optimization of data security techniques is very necessary so that the data or information that is secured is really safe from attack. Data that has been encrypted based on cryptographic techniques very quickly raises suspicion that the data is confidential or important. Therefore, this technique is better combined with steganography techniques. Utilization of steganography techniques can minimize the attacker's suspicion of data that is secured, because by using steganography data techniques can be hidden on certain objects. This study discusses how to encode a text based on the Merkle-Hellman Knapsack algorithm and the resulting password is hidden in a grayscale digital image as a hiding object based on the pixel value differencing algorithm. This is done to minimize suspicion and make it difficult for attackers to find out confidential or important data.Keywords: cryptography,steganography, merkle-hellmankanpsack, PVD, image

A data hiding scheme using the varieties of pixel-value differencing in multimedia images

2011 ◽  
Vol 84 (4) ◽  
pp. 669-678 ◽  
Author(s):  
Cheng-Hsing Yang ◽  
Chi-Yao Weng ◽  
Hao-Kuan Tso ◽  
Shiuh-Jeng Wang
Keyword(s):  
Data Hiding ◽  
Pixel Value ◽  
Pixel Value Differencing
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