|
Hokkaido University Collection of Scholarly and Academic Papers >
Hokkaido University Sustainability Weeks >
Sustainability Weeks 2009 >
2009 APSIPA Annual Summit and Conference >
Improvement on Information Capacity of Watermarked Images by Using Multi-Valued Area of Embedded Signals
| Title: | Improvement on Information Capacity of Watermarked Images by Using Multi-Valued Area of Embedded Signals |
| Authors: | Horiuchi, Takahiko Browse this author | | Wada, Masahiro Browse this author | | Saito, Ryoichi Browse this author | | Tominaga, Shoji Browse this author |
| Issue Date: | 4-Oct-2009 |
| Publisher: | Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference, International Organizing Committee |
| Journal Title: | Proceedings : APSIPA ASC 2009 : Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference |
| Start Page: | 765 |
| End Page: | 768 |
| Abstract: | Digital watermarking technology is very useful as a service for embedding ID data to analog content such as an image on printed material. Recently, many algorithms have been proposed for detecting watermarks from a captured image by a camera-equipped cellular phone. This paper focuses on an approach to embedding the ID data in a frequency domain. Although the approach has an advantage of robustness against a partial distortion of the captured image, the previous method along the approach has the problem of low limitation of embedded information capacity. This paper proposes a watermarking method for improving embedded information capacity by using multi-valued area of signals instead of binary signals. The feasibility of the proposed algorithm is confirmed in experiments using actual printed images. |
| Description: | APSIPA ASC 2009: Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference. 4-7 October 2009. Sapporo, Japan. Oral session: Low-level Color Image Processing (7 October 2009). |
| Conference Name: | APSIPA ASC 2009: Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference | | 2009年アジア太平洋信号情報処理連合学会アニュアルサミット・国際会議 |
| Conference Place: | Sapporo |
| Type: | proceedings |
| URI: | http://hdl.handle.net/2115/39802 |
| Appears in Collections: | 北海道大学サステナビリティ・ウィーク2009 (Sustainability Weeks 2009) > 2009年アジア太平洋信号情報処理連合学会アニュアルサミット・国際会議 (2009 APSIPA Annual Summit and Conference)
|
|
