Enhancing the robustness of image watermarking against cropping attacks with dual watermarks

CCUR > College of Business > Department of Information Management & Graduate Institute of Information Management > periodical articles > Item 987654321/48816

Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/48816

Title:	Enhancing the robustness of image watermarking against cropping attacks with dual watermarks
Authors:	Hsu, CS (Hsu, Ching-Sheng) Tu, SF (Tu, Shu-Fen)
Contributors:	資管系
Keywords:	Image watermarking Robust watermark QR decomposition Fragile watermark
Date:	2020-05
Issue Date:	2020-11-09 13:58:03 (UTC+8)
Abstract:	In this study, a QR-based digital watermarking scheme that can use color images is proposed. The main purpose of this method is to enhance robustness against cropping attacks. To achieve this aim, each bit of the robust watermark has four copies, which are hidden in different image blocks. The embedding rule is designed based on the sinusoidal function, and the wavelength of the sinusoidal function controls the trade-off between imperceptibility and robustness. The four copies of the watermark bit may be inconsistent if the watermarked image undergoes cropping attacks. Therefore, after the four copies of the watermark bit are extracted, the actual value of the watermark bit is judged based on the result of the tampering detection. Experimental results indicate that improving robustness with the help of tampering detection results effectively assists in watermark extraction. In addition, the method is superior to other methods in terms of invisibility, robustness, and embedding payload.
Relation:	MULTIMEDIA TOOLS AND APPLICATIONS 卷冊: 79 期: 17-18 頁數: 11297-11323
Appears in Collections:	[Department of Information Management & Graduate Institute of Information Management] periodical articles

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	206	View/Open

View Licence

Loading...