Optical asymmetric single-channel cryptosystem based on QZ synthesis for color images
In this paper, we propose an optical asymmetric single-channel cryptosystem based on QZ
synthesis (QZS) for color images. In our cryptosystem, a QZS method for synthesizing color …
synthesis (QZS) for color images. In our cryptosystem, a QZS method for synthesizing color …
An asymmetric single-channel color image encryption based on Hartley transform and gyrator transform
MR Abuturab - Optics and lasers in engineering, 2015 - Elsevier
A novel asymmetric single-channel color image encryption using Hartley transform and
gyrator transform is proposed. A color image is segregated into R, G, and B channels and …
gyrator transform is proposed. A color image is segregated into R, G, and B channels and …
Optical encryption and authentication based on phase retrieval and sparsity constraints
Complex holographic schemes are usually required to obtain complex-valued encrypted
images that are used for verification in previously proposed authentication approaches …
images that are used for verification in previously proposed authentication approaches …
An asymmetric color image cryptosystem based on Schur decomposition in gyrator transform domain
MR Abuturab - Optics and Lasers in Engineering, 2014 - Elsevier
A new asymmetric cryptosystem using Schur decomposition in gyrator transform (GT)
domain is introduced. In this approach, the color image to be encoded is first dissociated into …
domain is introduced. In this approach, the color image to be encoded is first dissociated into …
Group multiple-image encoding and watermarking using coupled logistic maps and gyrator wavelet transform
MR Abuturab - JOSA A, 2015 - opg.optica.org
A novel method of group multiple-image encoding and watermarking using coupled logistic
maps and gyrator wavelet transform is presented. The proposed method employs three …
maps and gyrator wavelet transform is presented. The proposed method employs three …
Optical single-channel cryptosystem based on the discrete wavelet transform and the chaotic standard map for multi-image
In this paper, an optical single-channel asymmetric cryptosystem based on the inverse
discrete wavelet transform (IDWT) and chaotic standard map for multi-image in cyan …
discrete wavelet transform (IDWT) and chaotic standard map for multi-image in cyan …
Color information verification system based on singular value decomposition in gyrator transform domains
MR Abuturab - Optics and Lasers in Engineering, 2014 - Elsevier
A new color image security system based on singular value decomposition (SVD) in gyrator
transform (GT) domains is proposed. In the encryption process, a color image is …
transform (GT) domains is proposed. In the encryption process, a color image is …
Optical single-channel cryptosystem based on the non-negative matrix factorization and face biometric in cyan–magenta–yellow–black color space
In this paper, an optical color single-channel asymmetric cryptosystem based on the non-
negative matrix factorization (NMF) and a face biometric in cyan–magenta–yellow–black …
negative matrix factorization (NMF) and a face biometric in cyan–magenta–yellow–black …
Single-channel color information security system using LU decomposition in gyrator transform domains
MR Abuturab - Optics Communications, 2014 - Elsevier
A novel single-channel color information security system based on LU decomposition in
gyrator transform domains is proposed. The original color image to be encoded is separated …
gyrator transform domains is proposed. The original color image to be encoded is separated …
An efficient fragile watermarking scheme with multilevel tamper detection and recovery based on dynamic domain selection
Self-recoverable fragile watermarking is meant for accurate tamper localization as well as
image recovery with superior visual quality. However, most of the existing state of art …
image recovery with superior visual quality. However, most of the existing state of art …