2016
DOI: 10.12720/jcm.11.5.491-497
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High Security Multiple-image Encryption using Discrete Cosine Transform and Discrete Multiple-Parameter Fractional Fourier Transform

Abstract: A multiple-image encryption scheme is proposed by using discrete cosine transform and discrete multiple-parameter fractional Fourier transform (DMPFRFT). Each image is performed by discrete cosine transform and filtering procedure and then multiplexed into a complex signal. After operated by a pixel scrambling, the complex signal is multiplied by random phase mask, and then encrypted into one image in DMPFRFT domain. The original images can be retrieved by using such correct keys as pixel scrambling operation,… Show more

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Cited by 3 publications
(2 citation statements)
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“…Fractional Fourier Transforms [15, Fractional Riesz Transforms Fractional Cosine Transform [18,20,41,[47][48][49] Fractional F-Kravchuk…”
Section: Frequently Used Less Frequently Usedmentioning
confidence: 99%
See 1 more Smart Citation
“…Fractional Fourier Transforms [15, Fractional Riesz Transforms Fractional Cosine Transform [18,20,41,[47][48][49] Fractional F-Kravchuk…”
Section: Frequently Used Less Frequently Usedmentioning
confidence: 99%
“…Ren et al [41] proposed a multiple image encryption scheme based on discrete multiple parameter fractional Fourier transform (DMPFrFT) for which original images are filtered in DCT domain and multiplexed into a single image. The multiple parameters are again generated using a periodicity parameter which serves as one of the keys.…”
Section: On the Basis Of Fixed/multiparameter (T )mentioning
confidence: 99%