Digital watermarking method based on luminance modification in amplitude modulation

การทำภาพพิมพ์ลายน้ำดิจิตอลโดยการปรับแต่งค่าความสว่างในระบบกล้ำความลึกของสัญญาณ

Name: Thumrongrat Amornraksa

Organization : King Mongkut's University of Technology Thonburi. Faculty of Engineering. Department of Computer Engineering

Name: Rapee Puertpan

Organization : King Mongkut's University of Technology Thonburi. Faculty of Engineering. Department of Computer Engineering

Name: ธำรงรัตน์ อมรรักษา

Name: รพี พืชพันธ์

keyword: Watermarks

; Amplitude modulation

Abstract: A watermark embedding method based on luminance modification is proposed in this paper. Beside of three color components contained within an image: red, green and blue, which are normally used to carry a watermark signal, the luminance is another component that was considered to convey the watermark signal. Moreover, in the embedding process, a technique based on Gaussian pixel-weighting marks was used to improve the quality of the watermarked image. In the retrieval method, the image filtering techniques such as lowpass filtering were utilized to extract the watermark signal, with no need of original image. The experimental results showed that a higher performance could be obtained when applying our proposed method in both embedding and retrieval processes

King Mongkut's University of Technology Thonburi

Address: Bangkok

Email: info.lib@mail.kmutt.ac.th

Created: 2001

Issued: 2550-02-08

Modified: 2008-11-14

บทความ/Article

BibliograpyCitation : KMUTT Research and Development Journal vol. 24, no. 3 (Sept.-Dec. 2001), p. 235-246

CallNumber: 12002004

eng

©copyrights King Mongkut's University of Technology Thonburi

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