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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Digital Image Watermarking Technique Based on Dense Descriptor
verfasst von : Ekta Walia, Anu Suneja
Erschienen in: High Performance Architecture and Grid Computing
Verlag: Springer Berlin Heidelberg
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Enthused by the robustness and simplicity of WLD(Weber’s Local Descriptor) descriptor, a new digital image watermarking is proposed. The proposed watermarking technique is based on WLD Descriptor. WLD descriptor is a histogram representation of an image that consists of two components of a pixel: its differential excitation and orientation. Differential excitation is the difference of center pixel with its surrounding neighbors and orientation is the gradient orientation of center pixel. WLD descriptor of an image is robust against various geometric and photometric attacks. This feature of WLD descriptor engrossed it to be used in digital image watermarking.