Intelligent Watermarking Scheme for image Authentication and Recovery
نویسندگان
چکیده
منابع مشابه
Intelligent Watermarking Scheme for image Authentication and Recovery
Recently, researchers have proposed semi-fragile watermarking techniques with the additional capability of image recovery. However, these approaches have certain limitations with respect to capacity, imperceptibility, and robustness. In this paper, we are proposing two independent watermarks, one for image recovery and the other for authentication. The first watermark (image digest), a highly c...
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In this paper, a simple hierarchical fragile watermarking scheme for image authentication is proposed. The important features and parity bits of an image are embedded by modifying the pixel value of the host image. Once an image is tampered by other users or corrupted by transmission, the parity bits and important features can be used to detect and recover the image. The method is effective bec...
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A data embedding method is proposed for image authentication based on table look-up in frequency domain. A visually meaningful watermark and a set of simple features are embedded invisibly in the marked image, which can be stored in the compressed form. The scheme can detect and localize alterations of the original image, such as the tempering of images exported from a digital camera.
متن کاملA Semi-Fragile Watermarking Scheme for Color Image Authentication
In this paper, a semi-fragile watermarking scheme is proposed for color image authentication. In this particular scheme, the color image is first transformed from RGB to YST color space, suitable for watermarking the color media. Each channel is divided into 4×4 non-overlapping blocks and its each 2×2 sub-block is selected. The embedding space is created by setting the two LSBs of selected sub-...
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In this paper, a fragile watermarking scheme is proposed for color image specified object’s authentication. The color image is first transformed from RGB to YST color space, suitable for watermarking the color media. The T channel corresponds to the chrominance component of a color image andYS T ⊥ , therefore selected for embedding the watermark. The T channel is first divided into 2×2 non-over...
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ژورنال
عنوان ژورنال: International Journal of Advanced Computer Science and Applications
سال: 2017
ISSN: 2156-5570,2158-107X
DOI: 10.14569/ijacsa.2017.080527