Survey on Rotation , Scaling , and Translation Invariant Watermarking Algorithm
نویسنده
چکیده
Watermarking is closely related to steganography but in watermarking the hidden data is usually related to cover image. In this paper discussed about algorithms for rotation, scaling and translation (RST) invariant image watermarking. There are mainly two categories of RST invariant image watermarking algorithms. Then, we discuss about various algorithm used for RST invariant image watermarking.
منابع مشابه
ROTATION, SCALING, AND TRANSLATION−INVARIANT MULTI−BIT WATERMARKING BASED ON LOG−POLAR MAPPING AND DISCRETE FOURIER TRANSFORM (FriPmPO1)
This paper proposes an RST−invariant multi−bit watermarking system based on LPM and DFT. This system embeds the watermark in a rotation and translation invariant domain obtained by first acquiring log−polar mapped DFT (LPM−DFT) magnitudes of an image, and then taking the magnitude of the 1−dimensional DFT along the angular axis of this LPM−DFT magnitudes. Neither the original cover image nor a ...
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