A secure authentication watermarking for halftone and binary images
نویسندگان
چکیده
منابع مشابه
A secure authentication watermarking for halftone and binary images
Authentication watermark is a hidden data inserted into an image that can be used to detect any accidental or malicious alteration in the image. In the literature, there are many authentication-watermarking techniques for continuous-tone images. However, quite a small number of secure authentication watermarking techniques are available for binary/halftone images. This paper proposes a simple s...
متن کاملSecure Authentication Watermarking for Binary Images
Authentication watermarking is a hidden data inserted into an image, in order to detect any alterations. It seems to be almost impossible to design a really secure authentication watermarking without making use of the solid cryptography theory and techniques. In a cryptography-based authentication watermarking, a message authentication code (or digital signature) of the whole image is computed ...
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In image authentication watermarking, hidden data is inserted into an image to detect any accidental or malicious image alteration. In the literature, quite a small number of cryptography-based secure authentication methods are available for binary images. This paper proposes a new authentication watermarking method for binary images. It can detect any visually significant alteration while main...
متن کاملReversible Data Hiding and Reversible Authentication Watermarking for Binary Images
Data hiding is a technique used to embed a sequence of bits in a host image with small visual deterioration and the means to extract it afterwards. Reversible data hiding allows, in addition, recovering the original cover-image exactly. Several reversible data hiding techniques have been developed but none of them seems to be appropriate for binary images. This paper proposes a reversible data ...
متن کاملHybrid Watermarking Scheme for Halftone Images
As digital halftone images are widely used in the printing of books, magazines, newspapers and computer printers, the ease with which perfect copies can be made, may lead to large-scale unauthorized copying. Watermarking has been considered for many copy prevention and copyright protection applications. The hybrid watermarking system is proposed for halftone images that the watermarks embedded ...
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ژورنال
عنوان ژورنال: International Journal of Imaging Systems and Technology
سال: 2004
ISSN: 0899-9457,1098-1098
DOI: 10.1002/ima.20018