Presentation 2006-12-14
A Scheme of Digital Ghost-Watermarking for Color Images
Hiromu KODA, Hiroki IESAKA, Shojiro SAKATA,
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Abstract(in English) This paper proposes a scheme of digital ghost-watermarking for color images. First we describe the basic algorithm of digital ghost-watermarking for monochrome images. Next we introduce the transformation of RGB color space into YC_bC_r color space in order to apply the algorithm to color images efficiently, and then we examine which of luminance component (Y) and chrominance components (C_b,C_r) is suitable for embedding digital ghost-watermarks. Finally by means of computer simulation for test images, we show that the watermark information in each image can be detected sensitively by our scheme even when the watermarked images are subjected to white noise, lossy coding and clipping.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) digital watermarking / digital ghost / color image / color space
Paper # CS2006-55,IE2006-123
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Committee IE
Conference Date 2006/12/7(1days)
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Registration To Image Engineering (IE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Scheme of Digital Ghost-Watermarking for Color Images
Sub Title (in English)
Keyword(1) digital watermarking
Keyword(2) digital ghost
Keyword(3) color image
Keyword(4) color space
1st Author's Name Hiromu KODA
1st Author's Affiliation The University of Electro-Communications()
2nd Author's Name Hiroki IESAKA
2nd Author's Affiliation The University of Electro-Communications
3rd Author's Name Shojiro SAKATA
3rd Author's Affiliation The University of Electro-Communications
Date 2006-12-14
Paper # CS2006-55,IE2006-123
Volume (vol) vol.106
Number (no) 423
Page pp.pp.-
#Pages 6
Date of Issue