A new model of QIM data hiding for quality access control of digital image

2015 ◽  
Author(s):  
Amit Phadikar ◽  
Himadri Mandal ◽  
Goutam Kr. Maity ◽  
Tien-Lung Chiu
Keyword(s):  
Access Control ◽  
Data Hiding ◽  
Digital Image ◽  
New Model

On the Implementation of a Digital Image Watermarking Framework Using Saliency and Phase Congruency

2017 ◽  
pp. 253-292
Author(s):  
Abhishek Basu ◽  
Susmita Talukdar
Keyword(s):  
Data Hiding ◽  
Digital Image ◽  
Image Watermarking ◽  
Saliency Map ◽  
Digital Image Watermarking ◽  
Phase Congruency ◽  
Hiding Capacity ◽  
Spectral Residual ◽  
Watermarking Scheme ◽  
Least Significant Bits

In this paper, a saliency and phase congruency based digital image watermarking scheme has been projected. The planned technique implants data at least significant bits (LSBs) by means of adaptive replacement. Here more information is embedded into less perceptive areas within the original image determined by a combination of spectral residual saliency map and phase congruency map. The position of pixels with less perceptibility denotes the most unimportant region for data hiding from the point of visibility within an image. Therefore any modification within these regions will be less perceptible to one observer. The model gives a concept of the areas which has excellent data hiding capacity within an image. Superiority of the algorithm is tested through imperceptibility, robustness, along with data hiding capacity.

Image error concealment and quality access control based on data hiding and cryptography

2010 ◽  
Vol 49 (2) ◽  
pp. 239-254 ◽  
Author(s):  
Amit Phadikar ◽  
Santi P. Maity ◽  
Claude Delpha
Keyword(s):  
Access Control ◽  
Data Hiding ◽  
Error Concealment
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