Enhancing image security through nonlinear preprocessing and double random phase encoding using fractional fourier transform.
Saved in:
| Title: | Enhancing image security through nonlinear preprocessing and double random phase encoding using fractional fourier transform. |
|---|---|
| Authors: | Radjah, Fayçal1 radjah.faycal@yahoo.fr, Diffellah, Nacira2 nacira.diffellah@univ-bba.dz, Bekkouche, Tewfik3 toufik.bekkouche@univ-bba.dz, Ziet, Lahcene1 lahcene.ziet@univ-setif.dz |
| Source: | Telkomnika. Jun2026, Vol. 24 Issue 3, p1003-1013. 11p. |
| Subjects: | Image encryption, Image processing, Cryptography, Signal-to-noise ratio, Data transmission system security measures |
| Abstract: | Image encryption is crucial for secure data transmission in fields such as IoT, medical imaging, and biometrics. This paper proposes an enhanced encryption framework that combines nonlinear preprocessing with double random phase encoding (DRPE) using the fractional fourier transform (FrFT). The diffusion process replaces the conventional XOR operation with a nonlinear hyperbolic tangent (tanh) function, improving confusion diffusion complexity and resistance to cryptanalytic attacks. Experimental results show a reduction in peak signal-to-noise ratio (PSNR) from 9.03 dB to 7.25 dB and a mean squared error (MSE) increase to 10×10³, indicating stronger encryption and lower correlation with the original image. The proposed method also enhances robustness against histogram and keysensitivity attacks. Statistical analyses, including entropy and number of pixels change rate (NPCR) metrics, demonstrate that the approach outperforms conventional DRPE methods while maintaining computational efficiency. This hybrid nonlinear and FrFT-based framework provides a practical and scalable solution for secure image transmission in sensitive and real-time applications. [ABSTRACT FROM AUTHOR] |
| Copyright of Telkomnika is the property of Department of Electrical Engineering, Ahmad Dahlan University and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 195172786 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Enhancing image security through nonlinear preprocessing and double random phase encoding using fractional fourier transform. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Radjah%2C+Fayçal%22">Radjah, Fayçal</searchLink><relatesTo>1</relatesTo><i> radjah.faycal@yahoo.fr</i><br /><searchLink fieldCode="AR" term="%22Diffellah%2C+Nacira%22">Diffellah, Nacira</searchLink><relatesTo>2</relatesTo><i> nacira.diffellah@univ-bba.dz</i><br /><searchLink fieldCode="AR" term="%22Bekkouche%2C+Tewfik%22">Bekkouche, Tewfik</searchLink><relatesTo>3</relatesTo><i> toufik.bekkouche@univ-bba.dz</i><br /><searchLink fieldCode="AR" term="%22Ziet%2C+Lahcene%22">Ziet, Lahcene</searchLink><relatesTo>1</relatesTo><i> lahcene.ziet@univ-setif.dz</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Telkomnika%22">Telkomnika</searchLink>. Jun2026, Vol. 24 Issue 3, p1003-1013. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Image+encryption%22">Image encryption</searchLink><br /><searchLink fieldCode="DE" term="%22Image+processing%22">Image processing</searchLink><br /><searchLink fieldCode="DE" term="%22Cryptography%22">Cryptography</searchLink><br /><searchLink fieldCode="DE" term="%22Signal-to-noise+ratio%22">Signal-to-noise ratio</searchLink><br /><searchLink fieldCode="DE" term="%22Data+transmission+system+security+measures%22">Data transmission system security measures</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Image encryption is crucial for secure data transmission in fields such as IoT, medical imaging, and biometrics. This paper proposes an enhanced encryption framework that combines nonlinear preprocessing with double random phase encoding (DRPE) using the fractional fourier transform (FrFT). The diffusion process replaces the conventional XOR operation with a nonlinear hyperbolic tangent (tanh) function, improving confusion diffusion complexity and resistance to cryptanalytic attacks. Experimental results show a reduction in peak signal-to-noise ratio (PSNR) from 9.03 dB to 7.25 dB and a mean squared error (MSE) increase to 10×10³, indicating stronger encryption and lower correlation with the original image. The proposed method also enhances robustness against histogram and keysensitivity attacks. Statistical analyses, including entropy and number of pixels change rate (NPCR) metrics, demonstrate that the approach outperforms conventional DRPE methods while maintaining computational efficiency. This hybrid nonlinear and FrFT-based framework provides a practical and scalable solution for secure image transmission in sensitive and real-time applications. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Telkomnika is the property of Department of Electrical Engineering, Ahmad Dahlan University and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=195172786 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.12928/TELKOMNIKA.v24i3.27650 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 1003 Subjects: – SubjectFull: Image encryption Type: general – SubjectFull: Image processing Type: general – SubjectFull: Cryptography Type: general – SubjectFull: Signal-to-noise ratio Type: general – SubjectFull: Data transmission system security measures Type: general Titles: – TitleFull: Enhancing image security through nonlinear preprocessing and double random phase encoding using fractional fourier transform. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Radjah, Fayçal – PersonEntity: Name: NameFull: Diffellah, Nacira – PersonEntity: Name: NameFull: Bekkouche, Tewfik – PersonEntity: Name: NameFull: Ziet, Lahcene IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 16936930 Numbering: – Type: volume Value: 24 – Type: issue Value: 3 Titles: – TitleFull: Telkomnika Type: main |
| ResultId | 1 |
