A Review of Image Watermarking Methods


Authors : Suman Verma, Manish Mathuria

Volume/Issue : Volume 2 - 2017, Issue 5 - May

Google Scholar : https://goo.gl/3QN1Os

Scribd : https://goo.gl/mUOykA

Thomson Reuters ResearcherID : https://goo.gl/3bkzwv

By the gradual support & enhancement in usage of internet, several issues are faced with respect to security.A safe & secure technique is needed to transmit the data. Digital watermarking is the method that ensures hiding of information & security. Watermarking is the method that hides the content or either detects the information in a digitized multimedia. Main focus of this discussion is on the watermarking of digitized audio, video & documents that are watermarked on a routine. This methodology has gained attention, particularly for indulging unidentifiable marks like copyright information about an author. This process includes a signal in a media that downgrades the visual ability of media.In this document, a watermarking method based on DWT is presumed to secures the data of an image & enhance the quality also.

Keywords : Digital watermarking, Spatial domain, Least Significant Bit (LSB), Frequency domain, Discrete Cosine Transform (DCT), Discrete Wavelet Transform (DWT), Discrete Fourier Transform (DFT).

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