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In this paper, a new method to reduce spectral redundancy with SHIRCT was represented. It was advanced that the compression ratio of SPIHT code with different SHIRCT transformation parameters tends to be equival when the parameter r\ tends to 0. The way of reducing spatial redundancy by using wavelet transformation and the algorithm of image lossless compression applying SPIHT is researched too. The...
In this paper, an optimized algorithm which combines improved SPIHT algorithm and segmented CABAC algorithm is presented to realize color images lossless compression. At the same time, wavelet transform is used to remove spatial redundancy, and YCoCg spectrum transformation is used to effectively remove spectrum redundancy. Experiment results show that the algorithm in this paper can effectively improve...
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