A Review For Digital Image Watermarking Techniques

Authors : Priyanka Bharti , Roshan

Volume/Issue : Volume 1 - 2016, Issue 1 April

Google Scholar : https://goo.gl/dZQEyp

Security of multimedia data has a great significance for internet as it provides ease of distribution, duplication & manipulating the data of multimedia format. The field of digital watermarking hides the sensitive original data to protect it from copying & its distribution. This document conducts evaluation over present techniques of digitized watermarking. In the field of digitized watermarking, sensitive data is invaded to protect the rights of ownership of multimedia information over the consideration of domains such as spatial or transform or wavelets. The techniques of spatial domain are implemented over pixels in a straight manner & domain of frequency is implemented over transforms coefficients of a picture. The assessment expands the important methodologies in spatial & transform domain and concentrates over disadvantages & advantages of the technology.

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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