A Watermark Extraction Model to Enhance the Correlation of Digimarc Plug-ins in Photoshop
Considering the watermark as a noise, a watermark extraction model is proposed in this paper to enhance the correlation of Digimarc plug-ins in Photoshop. First, an estimation of the original image for a watermarked image is obtained by TV (Total Variation) denoising model based on the Partial Differential Equation. Second, watermark noise information is obtained by subtraction between the watermarked image and the estimated one. Finally, the correlation of watermark can be improved by magnifying the watermark noise. The experimental results show that the new watermark extraction model can enhance the correlation of the Digimarc plug-ins although its watermarking method is unknown.
Photoshop Robustness digital watermarking Digimarc plug-ins
Li Li Hehuan Xu Chin Chen Cheng
Hangzhou Dianzi University, Institute of Graphics and Image Hangzhou, China Feng Chia University, Department of Information Engineering and Computer Science Taichung, Taiwan, R
国际会议
武汉
英文
835-839
2009-11-18（万方平台首次上网日期，不代表论文的发表时间）