IEEE Trans Image Process - Generic lossless visible watermarking--a new approach.

Tópicos

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Resumo

A novel method for generic visible watermarking with a capability of lossless image recovery is proposed. The method is based on the use of deterministic one-to-one compound mappings of image pixel values for overlaying a variety of visible watermarks of arbitrary sizes on cover images. The compound mappings are proved to be reversible, which allows for lossless recovery of original images from watermarked images. The mappings may be adjusted to yield pixel values close to those of desired visible watermarks. Different types of visible watermarks, including opaque monochrome and translucent full color ones, are embedded as applications of the proposed generic approach. A two-fold monotonically increasing compound mapping is created and proved to yield more distinctive visible watermarks in the watermarked image. Security protection measures by parameter and mapping randomizations have also been proposed to deter attackers from illicit image recoveries. Experimental results demonstrating the effectiveness of the proposed approach are also included.

Resumo Limpo

novel method generic visibl watermark capabl lossless imag recoveri propos method base use determinist onetoon compound map imag pixel valu overlay varieti visibl watermark arbitrari size cover imag compound map prove revers allow lossless recoveri origin imag watermark imag map may adjust yield pixel valu close desir visibl watermark differ type visibl watermark includ opaqu monochrom transluc full color one embed applic propos generic approach twofold monoton increas compound map creat prove yield distinct visibl watermark watermark imag secur protect measur paramet map random also propos deter attack illicit imag recoveri experiment result demonstr effect propos approach also includ

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