BINARY IMAGE WATERMARKING THROUGH BLURRING and BIASED BINARIZATION

Document Type

Article

Publication Date

1-1-2005

Abstract

Digital watermarking has been proposed for the protection of digital medias. This paper presents two watermarking algorithms for binary images. Both algorithms involve a blurring preprocessing and a biased binarization. After the blurring, the first algorithm embeds a watermark by modifying the DC components of the Discrete Cosine Transform (DCT), followed by a biased binarization, and the second one embeds a watermark by directly biasing the binarization threshold of the blurred image, controlled by a loop. Experimental results show the imperceptibility and robustness aspects of both algorithms.

Identifier

33947682873 (Scopus)

Publication Title

International Journal of Image and Graphics

External Full Text Location

https://doi.org/10.1142/S0219467805001665

ISSN

02194678

First Page

67

Last Page

87

Issue

1

Volume

5

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