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How to choose non sensitive coefficients for watermarking?

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Youssra
Youssra 2016-3-26
关闭： Walter Roberson 2016-3-27
Hello, I'm working on image watermarking, I'm working with DWT and SVD and I want to embed a watermark in some coefficients that changing in them wont destroy the quality of the image, do you have any idea how? should I use the edge detector for this or selecting the ROI of the image? I'm a bit confused!
Thank you in advance

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