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This paper presents an optimized watermarking scheme based on the discrete wavelet transform (DWT), discrete cosine transform (DCT) and singular value decomposition (SVD). The result of multiplying the left singular vector and matrix with the singular value matrix of a binary watermark are embedded in the result of multiplying the left singular vector and matrix and the singular value matrix of the...
The new generation polar-orbit meteorological satellite of China-FY3A carries a sensor named medium resolution spectral imager (MERSI), which includes 20 channels to observe the same area 2 to 6 times everyday. Its data with high resolutions of time and spatial are useful for detecting water. In this paper, we analyze the data by histogram and clustering, get the characters of all channels. We summarize...
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