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Tocopherols, the lipid-soluble antioxidants known collectively as vitamin E, are produced by photosynthetic organisms, which play important roles not only in human and animals but plants as well. 4-hydroxyphenylpyruvic acid dioxygenase is the first committed enzyme of this biosynthesis pathway. To better understand the biosynthesis pathway and mechanism in the one of the most important staple crop...
Color features of an image are the most widely used features in content-based image retrieval (CBIR) systems. Specifically histogram-based algorithms are considered to be effective for color image indexing. Color histogram describes the global distribution of pixels of an image which is insensitive to variations in scale and easy to calculate. However, the high dimensionality of feature vectors results...
In this paper an efficient copyright protection watermarking algorithm is proposed. By embedding orthogonal vector into the wavelet-tree structure of the host image, we get the watermarked image. At the same time human vision system is considered to get perceptual results. We design an elaborate function for blind watermarking scheme. This function can dynamically determine the embedding position...
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