Secure Authentication using Image Processing and Visual Cryptography for Banking Applications

2008 ◽  
Author(s):  
Chetana Hegde ◽  
S Manu ◽  
P Deepa Shenoy ◽  
K R Venugopal ◽  
L M Patnaik
Keyword(s):  
Image Processing ◽  
Visual Cryptography ◽  
Secure Authentication

scholarly journals Visual Cryptography for Image Processing: A Survey

2017 ◽  
Vol Volume-2 (Issue-1) ◽  
pp. 1417-1421
Author(s):  
Soundarya B A ◽  
Sowmeya D ◽  
Yazhini G V ◽  
Keyword(s):  
Image Processing ◽  
Visual Cryptography

A Study on Visual Cryptography for Colour Images

2017 ◽  
Vol 7 (7) ◽  
pp. 260
Author(s):  
R. Shanmuga Priya ◽  
A. Senthilkumar
Keyword(s):  
Image Processing ◽  
Computational Complexity ◽  
Secret Sharing ◽  
Human Visual System ◽  
Visual Information ◽  
Visual Cryptography ◽  
Pixel Expansion ◽  
Image Processing Techniques ◽  
Printed Text ◽  
Processing Techniques

The intent of this paper is to present some of the major things about visual cryptography for colour images. The idea behind this technique is quite simple and powerful. Visual cryptography deals with visual information like picture, printed text and written notes etc. Visual cryptography also called secret sharing. As the name implies visual cryptography which has a single secret image and more than one shadow images and provided for numerous users. Visual cryptography process depends on various measures such as accuracy, computational complexity, pixel expansion, contrast whether generated it is meaningless or meaningful. Encryption performed by image processing techniques and the decryption carried out by human visual system with the stacking images. Visual cryptography need not require any complicated cryptographic proficiency. So, the intruders or hackers get hard to hack the details programmatically. However, this papers deals with visual cryptography for colour images.

scholarly journals BOOLEAN XOR BASED (K,N) THRESHOLD VISUAL CRYPTOGRAPHY FOR GRAYSCALE IMAGES

2013 ◽  
pp. 130-133
Author(s):  
RAM KRISHNA JHA ◽  
ABHIJIT MUSTAFI
Keyword(s):  
Genetic Algorithm ◽  
Image Processing ◽  
Visual Information ◽  
Visual Cryptography ◽  
Threshold Value ◽  
Grey Level ◽  
Methods And Techniques ◽  
Visual Cryptography Scheme ◽  
Printed Text ◽  
Combining Methods

Secure digital images is very important for today’s scenario which combining methods and techniques coming from cryptography and image processing. Visual Cryptography Scheme (VCS) is a new kind of cryptography technique which allows visual information (e.g. printed text, picture etc.) to be encrypted in such a way that decryption can be performed by the human visual system without any complex computation on computers. Here we proposed a Visual Cryptography Scheme based on image division of grey level images for the generation of Secret Shares. In this paper we represent the (k, n) Threshold Visual Cryptography Scheme in which the size of generated Shares as well as Recovered Image have same as the Secret Image rather than other VCS where k is the threshold value. Also we proposed the new technique to generate the Shadow Assignment Matrix with the help of Genetic Algorithm (GA). This Shadow Assignment Matrix helped us to distribute the Temporary shadow to the users according to their occurrence of 1’s in a row.

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