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A cryptographic and watermarking encryption technique for securing and authentication of digital images
Quist-Aphetsi, Kester
;
Laurent, Nana
;
Pascu, Anca Christine
;
Gire, Sophie
;
Eghan, Jojo M.
;
Quaynor, Nii Narku
(
University of Cape Coast
,
2015
)
The digital image data transmission and storage in today’s cyberspace has increase with privacy and security concerns. Digital media collected from different sources such as surveillance systems, forensic databases, medical images are very sensitive hence security concerns regarding the safe transmission and authentication of such digital data across secured and unsecured communication channels needs to be addressed. This security to such images should be easily used to identify the source, detect modification and secure the content of the image as well as avoiding pixel loss during the original image recovery process. In this paper, we proposed a hybrid image cryptographic encryption and digital watermarking technique for the encryption and authentication of digital image content. The image encryption was done on the RGB channels and the spatial watermarking was successfully applied to the RGB-colour bands of the digital image and this rendered the watermark visibly subtle and difficult to detect under regular viewing. The digital watermarking technique was engaged to authenticate the image and detect modifications to the watermarked image. The watermark visibility and detection was difficult to detect and the image was successfully reconstructed without any loss of pixel value after decryption. The programming and implementation was done using MATLAB. Keywords- Cryptography, digital image, Encryption, Watermarking, pixel, authentication
Quist-Aphetsi, Kester
;
Laurent, Nana
;
Pascu, Anca Christine
;
Gire, Sophie
;
Eghan, Jojo M.
;
Quaynor, Nii Narku
(
University of Cape Coast
,
2015
)
A hybrid cryptographic encryption technique for securing surveillance digital images in mobile urban situation awareness systems
Quist-Aphetsi, Kester
;
Laurent, Nana
;
Pascu, Anca Christine
;
Gire, Sophie
;
Eghan, Jojo M.
;
Quaynor, Nii Narku
(
University of Cape Coast
,
2015
)
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Author
Eghan, Jojo M. (3)
Gire, Sophie (3)
Laurent, Nana (3)
Pascu, Anca Christine (3)
Quaynor, Nii Narku (3)
Quist-Aphetsi, Kester (3)
Subject
Cryptography (3)
Watermarking (2)
Authentication (1)
Digital image (1)
Digital images (1)
Encryption (1)
Image processing (1)
Pixel (1)
Pixel displacement (1)
RSA (1)
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Date Issued
2015 (3)