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Proceedings Paper

Digital watermarking based on pixels modification using adaptive Gaussian filter in lab color space
Author(s): Alisa Songputtipong; Thumrongrat Amornraksa
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Paper Abstract

This paper presents the digital watermarking based on modification of image pixels with two new concepts to enhance the accuracy of extracted watermark. First, the watermark is embedded into a new embedding channel, having a lower pixels variation in the CIELab color space. Second, adaptive Gaussian Filter is implemented with the original pixel prediction in the watermark extraction process. With our proposed method, the performance of the watermarking scheme can be improved. Sets of experiment are carried out to verify our concepts. The results show the improved performance in terms of NC, at equivalent quality of watermarked image, compared to previous methods. The results also show the improved robustness against various types of attack.

Paper Details

Date Published: 30 September 2011
PDF: 7 pages
Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 82851S (30 September 2011); doi: 10.1117/12.913440
Show Author Affiliations
Alisa Songputtipong, King Mongkut's Univ. of Technology Thonburi (Thailand)
Thumrongrat Amornraksa, King Mongkut's Univ. of Technology Thonburi (Thailand)

Published in SPIE Proceedings Vol. 8285:
International Conference on Graphic and Image Processing (ICGIP 2011)
Yi Xie; Yanjun Zheng, Editor(s)

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