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Cited by 13Chaos-based Image/Signal EncryptionComputer Science and EngineeringAdvanced Steganography and Watermarking Techniques

An efficient color image encryption scheme based on a matrix scrambling method and a new hybrid chaotic map

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Ogras, Hidayet·2021·Cogent Engineering
DOI 10.1080/23311916.2021.1940638
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Abstract

In this paper, an efficient chaos-based image encryption scheme for color images is proposed. This paper includes a strong displacement structure through a specified matrix scrambling method for pixel positions and a new hybrid chaotic map as a key generator for encryption. Chaotic Logistic map is used to generate binary bitstream for controlling diffusion process. The designed map exhibits superior performance in terms of key space range, complexity and chaotic substantiality that enhances security of the whole system. NPCR, UACI, MSE and PSNR values, which are frequently used in performance and security analysis in the field of image encryption, are at a satisfactory level and all parameters have successfully met the necessary conditions. For instance, in a good image encryption algorithm, ideal values of NPCR and UACI parameters should be 99.60% and 33.46%, respectively. The average results obtained in this study are very close to their ideal values as 99.6046 and 33.4733 for NPCR and UACI, respectively. According to a scientific study presented in the similar field, MSE value should be greater than 9,555; PSNR value must be less than 8.3875. In this study, average MSE and PSNR values calculated for six different test images are 10,315 and 7.9961, respectively. Some important analysis results have been compared to that of well-known Advanced Encryption Standard (AES) algorithm and a similar study presented in this field. Theoretical analysis and experimental results confirm that the proposed algorithm has great security and effectively encrypts and decrypts the color images with different sizes as well.

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  • The combination of high NPCR and UACI with low PSNR and SSIM values confirms that the proposed hybrid encryption algorithm ensures both strong security and effective visual obfuscation, making it well-suited for applications requiring high confidentiality in image transmission and storage.

    “In conclusion, the combination of high NPCR (ideally close to 99.6%,56) and UACI (ideally close to 33.46%,56) with low PSNR and SSIM values confirms that the proposed hybrid encryption algorithm ensures both strong security and effective visual obfuscation, making it well-suited for applications requiring high confidentiality in image transmission and storage.”

    From A novel memristor-based hyperchaotic hybrid encryption system with DNA for image encryption on the Jetson TX2 (2025) · cites this paper as [56]

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Cited by

Sorted by citations

Authors
Ogras, H.
Affiliations
Electronic Communication Technology, Batman University, Batman, Turkey
Venue
Cogent Engineering
Publisher
Informa UK Limited
Published
2021-01-01
Volume
8
Issue
1
ISSN
2331-1916 (ISSN-L)
DOI
10.1080/23311916.2021.1940638
OpenAlex
W3173372483
Cited by
13
References
5
Citations by year
2026: 4 · 2025: 6 · 2024: 2 · 2023: 1
FWCI
0.27
Type
journal article
Language
en
Open access
Licence
Locations
  • Cogent Engineering (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
research
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Chaos-based Image/Signal Encryption
  • Physical Sciences › Computer Science › Artificial Intelligence › Computer Science and Engineering
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Steganography and Watermarking Techniques
Keywords
color image encryption, chaos-based image encryption, hybrid chaotic maps, pixel scrambling, logistic map, key generation, diffusion, NPCR, UACI, key space, encryption security

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