A new kind of double image encryption by using a cutting spectrum in the 1-D fractional Fourier transform domains

Liu, Zhengjun; Li, Qiuming; Dai, Jingmin; Sun, Xuepeng; Liu, Shutian; Ahmad, Muhammad Ashfaq

doi:10.1016/j.optcom.2009.01.002

Cited by 52 publications

(23 citation statements)

References 29 publications

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“…The availability of wide range of processing softwares has increased the rate of illegal manipulations. Thus, multimedia data need to be encrypted using various encryptions like the Fourier transform (FrFT) [5,13,22,30,32], Fresnel transform [16,27], fractional Fourier transform etc to enhance the security of the content. FrFT has the property of intrinsic multiplicity through which varied mathematical inductions can be incorporated into it as per demand of the application.…”

Section: Introductionmentioning

confidence: 99%

An efficient fragile watermarking scheme with multilevel tamper detection and recovery based on dynamic domain selection

Singh

Agarwal

2015

Multimed Tools Appl

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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 approaches perform authentication and recovery on block basis owing to which the entire block is categorized as tampered in case of alteration of one or more pixels of it. This, results in staircase formation of tamper detected regions, hence lacking in accuracy. Furthermore, the visual quality of the recovered image also deteriorates as an approximate value is assigned to all the block pixels corresponding to the altered region. The proposed watermarking scheme performs both authentication and recovery pixelwise. The authentication of each pixel is done via multi level tamper detection(MLTD) through three authentication bits based on value, location and neighbourhood information. The domain for image recovery is chosen dynamically based on the content of the block, may it be in spatial domain for smooth blocks or frequency domain for the rough ones. This provides high accuracy in recovery. As the embedding of recovery information is done in the frequency domain, the imperceptibility of the watermarked image scheme remains high. Also, embedding of authentication information in the spatial domain maintains its fragile nature. Even for higher tampering ratios, the lost content is rebuilt with high peak signal to noise ratio(PSNR) of the recovered image. The probabilities of false rejection and false acceptance head towards the ideal value for most of the empirical analysis. Comparative study via metric evaluation of probability of false rejection (PFR), probability of false acceptance (PFA) and PSNR of recovered image for different standard test cover images demonstrate the efficacy of the proposed scheme over other existing state of art approaches. Further, the security of the proposed scheme remains high due to usage of multi-layered secret keys and chaos based random mapping handling worst tamper scenarios.

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Section: Introductionmentioning

confidence: 99%

An efficient fragile watermarking scheme with multilevel tamper detection and recovery based on dynamic domain selection

Singh

Agarwal

2015

Multimed Tools Appl

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“…In double random phase encoding (DRPE) technology [1][2][3][4][5][6][7][8], the data of the original image is modulated and changed by random phase function, which is regarded as the operation randomizing value of secret information. Moreover some optical processes or transforms [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] have been considered for changing the pixel value of image. The scrambling operations, such as Arnold transform and jigsaw transform, are used to make the change of sequence of image pixels [24][25][26][27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Color image encryption by using Arnold transform and color-blend operation in discrete cosine transform domains

Liu

et al. 2011

Optics Communications

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213

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“…In many algorithms, random phase masks are regarded as the essential keys for successful decryption. Recently, multiimage encryption (MIE) technology has been proposed [15][16][17][18][19][20][21][22][23][24]. As far as we know, the MIE can encrypt more information from many images into one image, and thus the MIE becomes an exciting technology in the field of image encryption.…”

Section: Introductionmentioning

confidence: 99%

Optical multi-image encryption based on frequency shift

Liu

Zhang

Zhao

et al. 2011

Optik

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A new kind of double image encryption by using a cutting spectrum in the 1-D fractional Fourier transform domains

Cited by 52 publications

References 29 publications

An efficient fragile watermarking scheme with multilevel tamper detection and recovery based on dynamic domain selection

An efficient fragile watermarking scheme with multilevel tamper detection and recovery based on dynamic domain selection

Color image encryption by using Arnold transform and color-blend operation in discrete cosine transform domains

Optical multi-image encryption based on frequency shift

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