Security enrichment of optical image cryptosystem based on superposition technique using fractional Hartley and gyrator transform domains deploying equal modulus decomposition

2019 ◽  
Vol 51 (5) ◽  
Author(s):  
Poonam Lata Yadav ◽  
Hukum Singh
Keyword(s):  
Optical Image ◽  
Equal Modulus Decomposition ◽  
Gyrator Transform ◽  
Superposition Technique ◽  
Image Cryptosystem ◽  
Transform Domains

Asymmetric optical cryptosystem for color image based on equal modulus decomposition in gyrator transform domains

2017 ◽  
Vol 93 ◽  
pp. 1-8 ◽  
Author(s):  
Hang Chen ◽  
Camel Tanougast ◽  
Zhengjun Liu ◽  
Loic Sieler
Keyword(s):  
Color Image ◽  
Equal Modulus Decomposition ◽  
Gyrator Transform ◽  
Transform Domains

Optical image encryption using QR code and multilevel fingerprints in gyrator transform domains

2017 ◽  
Vol 403 ◽  
pp. 62-67 ◽  
Author(s):  
Yang Wei ◽  
Aimin Yan ◽  
Jiabin Dong ◽  
Zhijuan Hu ◽  
Jingtao Zhang
Keyword(s):  
Image Encryption ◽  
Optical Image ◽  
Qr Code ◽  
Gyrator Transform ◽  
Transform Domains ◽  
Optical Image Encryption

Optical image cryptosystem using double random phase encoding and Arnold’s Cat map

2016 ◽  
Vol 48 (3) ◽  
Author(s):  
Ahmed M. Elshamy ◽  
Fathi E. Abd El-Samie ◽  
Osama S. Faragallah ◽  
Elsayed M. Elshamy ◽  
Hala S. El-sayed ◽  
...  
Keyword(s):  
Random Phase ◽  
Optical Image ◽  
Phase Encoding ◽  
Double Random Phase Encoding ◽  
Random Phase Encoding ◽  
Arnold’S Cat Map ◽  
Image Cryptosystem

Securing color image by using hyperchaotic system in gyrator transform domains

2016 ◽  
Vol 48 (8) ◽  
Author(s):  
Hang Chen ◽  
Camel Tanougast ◽  
Zhengjun Liu ◽  
Boya Hao
Keyword(s):  
Color Image ◽  
Hyperchaotic System ◽  
Gyrator Transform ◽  
Transform Domains

scholarly journals Asymmetric Optical Image Encryption With Silhouette Removal Using Interference and Equal Modulus Decomposition

2020 ◽  
Vol 12 (2) ◽  
pp. 1-8 ◽  
Author(s):  
Guangyu Luan ◽  
Aichuan Li ◽  
Zhengguang Chen ◽  
Caojun Huang
Keyword(s):  
Image Encryption ◽  
Optical Image ◽  
Equal Modulus Decomposition ◽  
Optical Image Encryption

scholarly journals QPSK Modulation Based Optical Image Cryptosystem Using Phase-shifting Digital Holography

2010 ◽  
Vol 14 (2) ◽  
pp. 97-103 ◽  
Author(s):  
Seok-Hee Jeon ◽  
Sang-Keun Gil
Keyword(s):  
Digital Holography ◽  
Optical Image ◽  
Phase Shifting ◽  
Image Cryptosystem

scholarly journals Image Processing Operators Based on the Gyrator Transform: Generalized Shift, Convolution and Correlation

Photonics ◽  
2019 ◽  
Vol 6 (4) ◽  
pp. 120
Author(s):  
Ronal A. Perez ◽  
Juan M. Vilardy O. ◽  
Cesar O. Torres M.
Keyword(s):  
Image Processing ◽  
Light Propagation ◽  
Sampling Theorem ◽  
Optical Image ◽  
Joint Transform Correlator ◽  
Simultaneous Application ◽  
Spatial Shift ◽  
Generalized Shift ◽  
Gyrator Transform ◽  
Nonlinear Joint

The gyrator transform (GT) is used for images processing in applications of light propagation. We propose new image processing operators based on the GT, these operators are: Generalized shift, convolution and correlation. The generalized shift is given by a simultaneous application of a spatial shift and a modulation by a pure linear phase term. The new operators of convolution and correlation are defined using the GT. All these image processing operators can be used in order to design and implement new optical image processing systems based on the GT. The sampling theorem for images whose resulting GT has finite support is developed and presented using the previously defined operators. Finally, we describe and show the results for an optical image encryption system using a nonlinear joint transform correlator and the proposed image processing operators based on the GT.

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