Izvorni znanstveni članak
https://doi.org/10.1080/00051144.2019.1670992
A DCT domain smart vicinity reliant fragile watermarking technique for DIBR 3D-TV
Tariq Bashir
; Department of Electrical and Computer Engineering, COMSATS University Islamabad, Islamabad, Pakistan
Imran Usman
; College of Computing and Informatics, Saudi Electronic University, Riyadh, Kingdom of Saudi Arabia
Abdulaziz Abdullah Albesher
; College of Computing and Informatics, Saudi Electronic University, Riyadh, Kingdom of Saudi Arabia
Samer Hassan Atawneh
; College of Computing and Informatics, Saudi Electronic University, Riyadh, Kingdom of Saudi Arabia
Syed Saud Naqvi
; Department of Electrical and Computer Engineering, COMSATS University Islamabad, Islamabad, Pakistan
Sažetak
This work presents a vicinity reliant intelligent fragile watermarking scheme for depth image-based rendering technique used for three-dimensional television. Depth map of a centre image is implicitly inserted in the block-based discrete cosine transform (DCT) of the same using an aggregate, which also takes into account the presence of its neighbourhood blocks. Based upon the parity of a Boolean operation on the aggregate, parity is modulated which implicitly embeds the watermark. Genetic algorithm is then utilized to select the appropriate frequency bands in the DCT domain to become eligible for watermark embedding based on imperceptibility requirements. Experimental results demonstrate the usefulness of the proposed scheme in terms of its resistance against a set of fragile watermarking attacks and its ability to detect and localize tempering attempts.
Ključne riječi
Vicinity reliant fragile watermarking (VRFW); discrete cosine transform (DCT); depth image-based rendering (DIBR); three-dimensional television (3D-TV); genetic algorithm
Hrčak ID:
239850
URI
Datum izdavanja:
3.12.2019.
Posjeta: 647 *