Abstract
Watermarking is used mostly for multimedia data copyright protection. This paper introduces the Transformation Framelet (FLT) for watermarking digital images. In this technique, the FLT is used to create an original image and watermark the low (LL) frequency subband of an original image in LL subband of an image watermarking. Simulation results demonstrate, in terms of a wide range of traditional attaches, that this approach is imperceptible and stable. MATLAB software version 2014 was used for simulation. Experiments on gray scale and colored images were performed in this work.
Highlights
The new fields of computer science, encryption, signal processing and communication are digital watermarking technology [1]
In addition to data coding and scrambling to secure information, digital watermarking is developed by its creators as a solution to the requirement of providing added value protection
This paper proposes a system based on FLT watermarking which functions in the domain of transformation
Summary
The new fields of computer science, encryption, signal processing and communication are digital watermarking technology [1]. The methods of transforming the domain are common as the embedding of watermarks is more robust than spatial domain. Many researchers implemented hybrid method, the DCT-SVD watermarking mechanism, capable of enhancing the robustness and invisibility of watermarked images [11,12,13]. This hybrid mechanism has been developed by several researchers. This paper proposes a system based on FLT watermarking which functions in the domain of transformation. The additional wavelet at this point creates this structure an overcomplete one It follows that ɸ(t) , Ψ1(t) and Ψ2(t) satisfies a dilation and wavelet equations [16, 17,18]. This means that the input and output of the two filters are expected to be the same [20,21]
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