A DCT-Domain System for Hiding Fractal Compressed Images

Chang, Chin‐Chen; Chiang, Chi-Lung; Hsiao, Ju-Yuan

doi:10.1109/aina.2005.17

Cited by 9 publications

(2 citation statements)

References 12 publications

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“…This method of image hiding is broadly divided into two categories. The first category is frequency domain [6] that has less data hiding capacity and is more complicated in processing. The second category is spatial domain [7,8] that has huge data hiding capacity and is less complicated than frequency domain.…”

Section: Figure 1 Framework Of Cryptographymentioning

confidence: 99%

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A Novel Image Encryption Using Parity Based Visual Cryptography

Rao¹,

Mandapati²

2021

ISI

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The current era is mainly focused on secured data transmission and every organization takes preventive measures to protect network’s private data. Among different techniques visual cryptography is a prominent one that that encrypts the visual information and decrypts secret using mechanical operations without any computation, but each share need pixel expansion. In the current work, we propose an Image encryption technique using (n, n) Visual cryptography based on simple operations without pixel expansion. The proposed novel technique gives an image encryption using visual cryptography based on Least significant bit (LSB) technique in spatial domain and parity mechanism using Exclusive-OR(XOR) operation. developed for encrypting grey scale image. Image encryption and decryption uses simple Boolean operations. The technique provides better quality of shares and recovers without any loss.

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Section: Figure 1 Framework Of Cryptographymentioning

confidence: 99%

“…It is not possible to reconstruct the original secret image without any one of those four shares. for j = 0 to N-1 repeat // for each pixel of SecretImage repeat the steps from 3 to 24 3 CI4_pixel [ 6] = SI_pixel [ 6]; CI4_pixel [ 7] = SI_pixel [ 7]; // merging with cover image 12) for k = 0 to 7 13)CI1_pixel [6]=CI1_pixel [6]…”

Section: Encryptionmentioning

confidence: 99%