ETRI-Knowledge Sharing Plaform

KOREAN
논문 검색
Type SCI
Year ~ Keyword

Detail

Conference Paper Hybrid Watermarking for Improving Detector Performance
Cited 0 time in scopus Share share facebook twitter linkedin kakaostory
Authors
Won-Gyum Kim, Yong-Seok Seo, Young-Ho Suh
Issue Date
2006-10
Citation
International Conference on Multimedia (MM) 2006, pp.161-164
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1145/1180639.1180685
Abstract
In this paper, we describe the adaptive hybrid watermarking scheme to improve the watermark detector's performance. In the hybrid watermarking, the conventional spatial watermarking and QIM scheme are applied simultaneously to the spatial domain of the image. According to the edge-map of the image the spatial watermarking is applied to the flat region and the QIM is applied to the high frequency region including edge and texture. The threshold between flat and edge is decided empirically and watermark blocks are embedded repeatedly into the image. In the detection process, we show how to estimate the threshold value by ACF(Auto-Correlation Function). Experimental results show the proposed hybrid watermarking estimates the watermark signal correctly than the conventional spatial watermarking.
KSP Keywords
Edge map, High frequency(HF), Threshold Value, auto-correlation function(ACF), detection process, detector performance, flat region, spatial domain, watermarking scheme