A wavelet based partial image encryption using chaotic logistic map

Hazarika, Nitumoni; Borah, Sagarika; Saikia, Monjul

doi:10.1109/icaccct.2014.7019347

Cited by 14 publications

(7 citation statements)

References 5 publications

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“…In addition, the shuffling process in this system is done at the image pixel level. A wavelet based partial image encryption is proposed by Hazarika et al [32]. In this proposed scheme, the digital image is encrypted partially by using discrete wavelet transformation (DWT) technique, pixel shuffling, and changing of pixel values.…”

Section: Related Workmentioning

confidence: 99%

A lightweight and efficient digital image encryption using hybrid chaotic systems for wireless network applications

Almalkawi

Halloush

Alsarhan

et al. 2019

Journal of Information Security and Applications

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Section: Related Workmentioning

confidence: 99%

A lightweight and efficient digital image encryption using hybrid chaotic systems for wireless network applications

Almalkawi

Halloush

Alsarhan

et al. 2019

Journal of Information Security and Applications

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“…1) Novel Hybrid Scattering Chaotic method and 2) Novel Dominant color subband encryption. The algorithm used for the encryption process is the novel hybrid Scattering Chaotic map which further increases encryption's strength, making it to be an efficient scheme [7] compared with any other existing schemes.…”

Section: Introductionmentioning

confidence: 99%

Novel Dominant Color Subband Image Encryption in Visual Sensor Network for Smart Military Surveillance System

Nithya¹,

Dhanasekaran²

2022

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Internet of Things plays a major role in improving the levels of intelligence for several defense and military applications. There are myriads of visual sensor nodes deployed in various domain areas to acquire complete situational awareness. These sensor nodes must transmit the real-time information obtained from multiple locations to identify the threats in the danger-prone zones. The keyframes obtained from the visual sensor nodes should reach the command and control room in a confidentially manner. The lightweight scheme proposed for encryption in the visual sensor network is the novel Dominant color subband image encryption. This scheme involves encrypting only the dominant subband from an entire RGB image using the novel hybrid Chaotic method. The hybrid chaotic method combines the distinctive features of Quadratic, Ginger breadman, and Baker’s map. This hybrid scheme develops a complex, diverse chaotic structure that is unpredictable. A comparative analysis of this encryption scheme against other chaotic methods was done. It was found that the Novel Dominant color subband image encryption algorithm performs significantly better than the other existing methods to achieve real-time security in vision sensors. This method takes advantage of having lesser computation time and increased PSNR values, which indicates the higher quality of the images after decryption.

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“…The image blocks are permuted using piecewise linear chaotic map (PWLCM) while the selection of encoding and decoding rules is done by logistic sequence for each pixel. Hazarika et al [12] proposed a partial encryption scheme in which the input image is transformed using Discrete Wavelets Transform (DWT) to four components while only the (LL approximation) is quantized. The bit positions are permuted using two dimensional chaotic logistic maps then the result is XORed with third chaotic logistic map.…”

Section: Introductionmentioning

confidence: 99%

Selective Image Encryption Based on DCT, Hybrid Shift Coding and Randomly Generated Secret Key

George

Hassan

Mohammed

et al. 2020

eijs

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Most of today’s techniques encrypt all of the image data, which consumes a tremendous amount of time and computational payload. This work introduces a selective image encryption technique that encrypts predetermined bulks of the original image data in order to reduce the encryption/decryption time and thecomputational complexity of processing the huge image data. This technique is applying a compression algorithm based on Discrete Cosine Transform (DCT). Two approaches are implemented based on color space conversion as a preprocessing for the compression phases YCbCr and RGB, where the resultant compressed sequence is selectively encrypted using randomly generated combined secret key.The results showed a significant reduction in image quality degradation when applying the system based on YCbCr over RGB, where the compression ratio was raised in some of the tested images to 50% for the same Peak Signal to Noise Ratio (PSNR). The usage of 1-D DCT reduced the transform time by 47:1 times comparedto the same transform using 2-D DCT. The values of the adaptive scalar quantization parameters were reduced to the half for the luminance (Y band) to preserve the visual quality, while the chrominance (Cb and Cr bands) were quantized by the predetermined quantization parameters. In the hybrid encoder horizontal zigzag,block scanning was applied to scan the image. The Detailed Coefficient (DC) coefficients are highly correlated in this arrangement- where DC are losslessly compressed by Differential Pulse Coding Modulation (DPCM) and theAccumulative Coefficients (AC) are compressed using Run Length Encoding (RLE). As a consequence, for the compression algorithm, the compression gain obtained was up to 95%. Three arrays are resulted from each band (DC coefficients, AC values, and AC runs), where the cipher is applied to some or all of those bulksselectively. This reduces the encryption decryption time significantly, where encrypting the DC coefficients provided the second best randomness and the least encryption/decryption time recorded (3 10-3 sec.) for the entire image. Although the compression algorithm consumes time but it is more efficient than the savedencryption time.

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A wavelet based partial image encryption using chaotic logistic map

Cited by 14 publications

References 5 publications

A lightweight and efficient digital image encryption using hybrid chaotic systems for wireless network applications

A lightweight and efficient digital image encryption using hybrid chaotic systems for wireless network applications

Novel Dominant Color Subband Image Encryption in Visual Sensor Network for Smart Military Surveillance System

Selective Image Encryption Based on DCT, Hybrid Shift Coding and Randomly Generated Secret Key

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