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Ochotona curzoniae is one of the main creature calamities in Qinghai-Tibet Plateau. With the development of advanced biological recognition technologies, a new scientific method is provided for the Ochotona curzoniae's research using the automatic identification system of the Ochotona curzoniae. But due to the relative motion between the object and the video camera, the obtained image of Ochotona...
G channel of the RGB color host image was divided into different bit-planes and the watermark is embedded into the lowest one. Then the binary image watermark is processed by using error correcting coding and Arnold transform before embedded. The embed position is chosen according to the secret key obtained during the course of the best scrambling degree calculation in Arnold transform, so the security...
Digital watermarking is a technique that can embed identity information and secrecy information into images. For copyright protection and content authentication of digital color image, A Blind Watermarking Algorithm for Color Image based on Singular Value quantization (SVD) in DWT Domain is proposed in this paper. Firstly, the blue component of the original color image is decomposed with DWT, then,...
A new barcode watermarking algorithm in Discrete Wavelet Transform (DWT) domain is proposed. The algorithm utilizes the visual masking and texture characteristics of Human Visual System (HVS) to achieve the invisible and robust requirements for watermarking. In addition, a barcode which consist vertical bars and numbers is taken as the watermark embedded into the host image. Numbers in the barcode...
In this paper, a color image watermarking algorithm based on fractal and neural networks in Discrete Cosine Transform (DCT) domain is proposed. Firstly, the algorithm utilizes the fractal image coding technique to obtain the characteristic data of a gray-level image watermark signal and encrypts it by a symmetric encryption algorithm before it was embedded. Secondly, by exploiting the abilities of...
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