scholarly journals Morphological Associative Memories for Gray-Scale Image Encryption

2014 ◽  
Vol 8 (1) ◽  
pp. 127-134
Author(s):  
Mar�a Elena Acevedo ◽  
Jos� �ngel Mart�nez ◽  
Marco Antonio Acevedo ◽  
Cornelio Ya�ez
Keyword(s):  
Image Encryption ◽  
Associative Memories ◽  
Gray Scale ◽  
Gray Scale Image

scholarly journals A Simple Image Encryption Based on Binary Image Affine Transformation and Zigzag Process

Complexity ◽  
2022 ◽  
Vol 2022 ◽  
pp. 1-22
Author(s):  
Adélaïde Nicole Kengnou Telem ◽  
Cyrille Feudjio ◽  
Balamurali Ramakrishnan ◽  
Hilaire Bertrand Fotsin ◽  
Karthikeyan Rajagopal
Keyword(s):  
Diffusion Process ◽  
Image Encryption ◽  
Affine Transformation ◽  
Binary Image ◽  
Secret Key ◽  
Gray Scale ◽  
Simple Method ◽  
Binary Images ◽  
Gray Scale Image ◽  
And Diffusion

In this paper, we propose a new and simple method for image encryption. It uses an external secret key of 128 bits long and an internal secret key. The novelties of the proposed encryption process are the methods used to extract an internal key to apply the zigzag process, affine transformation, and substitution-diffusion process. Initially, an original gray-scale image is converted into binary images. An internal secret key is extracted from binary images. The two keys are combined to compute the substitution-diffusion keys. The zigzag process is firstly applied on each binary image. Using an external key, every zigzag binary image is reflected or rotated and a new gray-scale image is reconstructed. The new image is divided into many nonoverlapping subblocks, and each subblock uses its own key to take out a substitution-diffusion process. We tested our algorithms on many biomedical and nonmedical images. It is seen from evaluation metrics that the proposed image encryption scheme provides good statistical and diffusion properties and can resist many kinds of attacks. It is an efficient and secure scheme for real-time encryption and transmission of biomedical images in telemedicine.

Small Details Gray Scale Image Encryption Using RC6 Block Cipher

2021 ◽  
Author(s):  
Osama S. Faragallah ◽  
Hala S. El-sayed ◽  
Ashraf Afifi ◽  
S. F. El-Zoghdy
Keyword(s):  
Image Encryption ◽  
Block Cipher ◽  
Gray Scale ◽  
Gray Scale Image

Gray-scale morphological associative memories

2006 ◽  
Vol 17 (3) ◽  
pp. 559-570 ◽  
Author(s):  
P. Sussner ◽  
M.E. Valle
Keyword(s):  
Associative Memories ◽  
Gray Scale
Sign in / Sign up

Export Citation Format

Share Document