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I want to embed a digital image watermark using Fractional Fourier Transform. FrFT converts an image to complex form. How can I embed this watermark with complex values as zeros and ones?

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preeti preeti
preeti preeti am 13 Dez. 2017
I have a 64x64 grayscale image. I converted it into Binary. Applied 2D-FrFT. It gives complex values. How can it be embedded in a host image as 0 or 1 now?

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