Data Hiding in an Image by Barcode Modulation for Secure Data Transmission



The concept of two-D bar codes is of extraordinary relevance for use in wireless statistics transmission among handheld virtual gadgets. In a well-known setup, any file on a mobile telephone cellphone, for instance, may be transferred to a 2nd mobile phone cellphone through a chain of images at the liquid crystal show which might be then captured and decoded through the digital digicam of the second one telephone cell smartphone. On this have a study, a modern-day-day method for facts modulation in 2-D bar codes is introduced, and its conventional typical overall performance is evaluated in evaluation to unique famous methods of bar code modulation. In this new technique, orthogonal frequency-department multiplexing (OFDM) modulation is used together with differential phase shift keying (DPSK) over adjoining frequency area factors. A completely particular cause of this look at is to installation a device this is proven tolerant to digital digital camera moves, photograph blur, and mild leakage inner neighboring pixels of a liquid crystal display.

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