Ownership protection of plenoptic images by robust and reversible watermarking
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Ownership protection of plenoptic images by robust and reversible watermarking

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Ownership protection of plenoptic images by robust and reversible watermarking

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dc.contributor.author Ansari, Amir
dc.contributor.author Hong, Seokmin
dc.contributor.author Saavedra Tortosa, Genaro
dc.contributor.author Javidi, Bahram
dc.contributor.author Martínez Corral, Manuel
dc.date.accessioned 2018-06-18T13:34:48Z
dc.date.available 2018-06-18T13:34:48Z
dc.date.issued 2018
dc.identifier.uri http://hdl.handle.net/10550/66681
dc.description.abstract Plenoptic images are highly demanded for 3D representation of broad scenes. Contrary to the images captured by conventional cameras, plenoptic images carry a considerable amount of angular information, which is very appealing for 3D reconstruction and display of the scene. Plenoptic images are gaining increasing importance in areas like medical imaging, manufacturing control, metrology, or even entertainment business. Thus, the adaptation and refinement of watermarking techniques to plenoptic images is a matter of raising interest. In this paper a new method for plenoptic image watermarking is proposed. A secret key is used to specify the location of logo insertion. Employing discrete cosine transform (DCT) and singular value decomposition (SVD), a robust feature is extracted to carry the watermark. The Peak Signal to Noise Ratio (PSNR) of the watermarked image is always higher than 54.75 dB which is by far more than enough for Human Visual System (HVS) to discriminate the watermarked image. The proposed method is fully reversible and, if no attack occurs, the embedded logo can be extracted perfectly even with the lowest figures of watermark strength. Even if enormous attacks occur, such as Gaussian noise, JPEG compression and median filtering, our method exhibits significant robustness, demonstrated by promising bit error rate (BER) performance.
dc.language.iso eng
dc.relation.ispartof Optics and Lasers in Engineering, 2018, vol. 107, p. 325-334
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Ansari, Amir Hong, Seokmin Saavedra Tortosa, Genaro Javidi, Bahram Martínez Corral, Manuel 2018 Ownership protection of plenoptic images by robust and reversible watermarking Optics and Lasers in Engineering 107 325 334
dc.subject Òptica
dc.subject Imatges Processament Tècniques digitals
dc.title Ownership protection of plenoptic images by robust and reversible watermarking
dc.type info:eu-repo/semantics/article
dc.date.updated 2018-06-18T13:34:49Z
dc.identifier.doi https://doi.org/10.1016/j.optlaseng.2018.03.028
dc.identifier.idgrec 126261

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