A Visible Watermarking Scheme for JPEG Images Based on Modification of Frequency Coefficients

Ownership evidence can be directly exposed through visible watermarks which can avoid the attempts of copyright abuses. JPEG images are widely used for many commercial applications in Internet, because of its reduced size and the requirement of low bandwidth. In this paper, a visible watermarking sc...

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Bibliographic Details
Published in:	Automatic control and computer sciences Vol. 55; no. 5; pp. 444 - 453
Main Authors:	Denslin Brabin, D. R., Bojjagani, Sriramulu, Braja, D.R. Denslin
Format:	Journal Article
Language:	English
Published:	Moscow Pleiades Publishing 01-09-2021 Springer Nature B.V
Subjects:	Coefficients Computer Science Control Structures and Microprogramming Discrete cosine transform Image compression JPEG encoders-decoders Visibility Watermarking watermarking data hiding JPEG DCT
Online Access:	Get full text
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Summary:	Ownership evidence can be directly exposed through visible watermarks which can avoid the attempts of copyright abuses. JPEG images are widely used for many commercial applications in Internet, because of its reduced size and the requirement of low bandwidth. In this paper, a visible watermarking scheme is proposed for JPEG compressed images. This scheme is based on the modification of frequency coefficients of original image with respect to the frequency coefficients of watermark image. In JPEG compression, forward discrete cosine transform (DCT) phase is processed to embed visible watermarks. Different sizes of color and grayscale watermark images can be embedded in the carrier image with high visibility. Experimental results confirm the quality of the proposed visible watermarking scheme.
ISSN:	0146-4116 1558-108X
DOI:	10.3103/S0146411621050023