Implementation of Invisible Digital Watermarking on Image using Nonlinear Function

Sabyasachi Samanta1 and Saurabh Dutta2

1Haldia Institute of Technology, Haldia, WB, India

2Dr. B. C. Roy Engineering College, Durgapur, WB, India


This paper presents how long textual information is encrypted to some suitable nonlinear pixel and bit positions about the image. The data bits for length are encrypted through the key and for text are encrypted through the subset of key using the digits of that key to different logical region of image. Also to retrieve that hidden data bits from that pixels and to reconstruct into its original text.

Keywords: Pixel, Invisible digital watermarking, Nonlinear function.

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