Exact image subband decomposition/reconstruction by DCT
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摘要
In a recent paper an image decomposition/reconstruction subband coding scheme free of aliasing and boundary errors has been proposed. Ideal filters have been used and implemented with DFT. A few additional data are necessary to perform the exact reconstruction. We show here that the use of DCT to implement a similar filtering process avoids the use of this additional data. Practically, the computation load does not change.
论文关键词:Image data compression,subband coding,DCT
论文评审过程:Received 3 January 1991, Revised 27 July 1991, Revised 7 May 1992, Available online 14 August 2003.
论文官网地址:https://doi.org/10.1016/0923-5965(92)90033-C