Development of scalable coding for the encryption and decryption of images using modified diagonal min-max block truncation code

Many of the researchers have so far commendably worked and contributed towards the scalability coding of unencrypted images, and there is adequate space for research and evolvement in the area of scalable coding on encrypted images. This paper proposes a novel method of scalable coding on encrypted...

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Bibliographic Details
Published in:Multimedia tools and applications Vol. 82; no. 8; pp. 12263 - 12277
Main Authors: Pankiraj, Jeya Bright, Govindaraj, Vishnuvarthanan, Zhang, Yudong, Murugan, Pallikonda Rajasekaran, Milton, Anisha
Format: Journal Article
Language:English
Published: New York Springer US 01.03.2023
Springer Nature B.V
Subjects:
Coders
Compression ratio
Computer Communication Networks
Computer Science
Data encryption
Data Structures and Information Theory
Encryption
Image coding
Informatics
Interpolation
Multimedia
Multimedia Information Systems
Pseudorandom
Random numbers
Renovation & restoration
Scaling factors
Signal processing
Special Purpose and Application-Based Systems
Wavelet transforms
Image encryption
Image compression
Secured signal processing
Scalable coding on encrypted image
Image reconstruction
ISSN:1380-7501, 1573-7721
Online Access:Get full text
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Summary:Many of the researchers have so far commendably worked and contributed towards the scalability coding of unencrypted images, and there is adequate space for research and evolvement in the area of scalable coding on encrypted images. This paper proposes a novel method of scalable coding on encrypted images using Modified Diagonal Min-Max Block Truncation Code (MDMMBTC). The given raw image is compressed at the encoder using Modified Min-Max Block Truncation Coding, and then encryption is done using the pseudo-random number (PRN) technique. The PRN Key is shared between the encoder and decoder. At the decoder, first, the encoded image is subtracted with the PRN key, and the resultant output is used to rebuild the principal content by using MDMMBTC, scaled by scaling factor 2, and Bilinear Interpolation Technique. The MDMMBTC gives a 36.6 dB PSNR ratio and 1.08 Compression ratio than existing Hadamard, BTC, and DMMBTC techniques, making the proposed technique readily be used for the better purpose of encrypting and decrypting the image without any impediments.
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ISSN:1380-7501
1573-7721
DOI:10.1007/s11042-022-13832-w