scholarly journals Reversible Data Hiding Technique using Novel Interpolation Technique and Discrete Cosine Transform

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Basnt Sah ◽  
◽  
Vijay Kumar Jha ◽  
Keyword(s):  
Discrete Cosine Transform ◽  
Data Hiding ◽  
Reversible Data Hiding ◽  
Cosine Transform ◽  
Interpolation Technique

scholarly journals Reversible Data Hiding based on Two-dimensional Histogram Shifting

2021 ◽  
Author(s):  
Juan Zhao ◽  
Zhitang Li
Keyword(s):  
Discrete Cosine Transform ◽  
Data Hiding ◽  
Reversible Data Hiding ◽  
Two Dimensional ◽  
Histogram Shifting ◽  
Cosine Transform ◽  
Distortion Drift

This paper presents a two-dimensional histogram shifting technique for reversible data hiding algorithm. In order to avoid the distortion drift caused by hiding data into stereo H.264 video, we choose arbitrary embeddable blocks from 4×4 quantized discrete cosine transform luminance blocks which will not affect their adjacent blocks. Two coefficients in each embeddable block are chosen as a hiding coefficient pair. The selected coefficient pairs are classified into different sets on the basis of their values. Data could be hidden according to the set which the value of the coefficient pair belongs to. When the value of one coefficient may be changed by adding or subtracting 1, two data bits could be hidden by using the proposed method, whereas only one data bit could be embedded by employing the conventional histogram shifting. Experiments show that this two-dimensional histogram shifting method can be used to improve the hiding performance.

Analysis of blind data hiding using discrete cosine transform phase modulation

2007 ◽  
Vol 22 (4) ◽  
pp. 347-362 ◽  
Author(s):  
Faisal T. Alturki ◽  
Ali F. Almutairi ◽  
Russell M. Mersereauu
Keyword(s):  
Discrete Cosine Transform ◽  
Data Hiding ◽  
Phase Modulation ◽  
Cosine Transform

Reversible data hiding in homomorphically encrypted image using interpolation technique

2019 ◽  
Vol 48 ◽  
pp. 102374 ◽  
Author(s):  
Asad Malik ◽  
Hongxia Wang ◽  
Tailong Chen ◽  
Tianlong Yang ◽  
Ahmad Neyaz Khan ◽  
...  
Keyword(s):  
Data Hiding ◽  
Reversible Data Hiding ◽  
Encrypted Image ◽  
Interpolation Technique
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