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- W35156945 abstract "DWT image compression for mobile communication is presented. Discrete wavelet transform (DWT) with Haar mother function is utilized in this paper. The exact location information of the important DWT coefficients is generally needed for reconstructing the image. In this work, however, such information is not needed because it can be obtained from the DWT- approximation. Through a one dimensional directional difference operator not only the exact location information of the DWT coefficients but also the rough estimate of the coefficient itself can be obtained from the DWT-approximation when Haar mother wavelet function is utilized. The direction of the difference operator are different each other according to the DWT-details (horizontal, vertical and diagonal detail). This paper shows highly efficient image compression can be achieved when such DWT-approximation information is utilized well." @default.
- W35156945 created "2016-06-24" @default.
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- W35156945 date "2005-12-23" @default.
- W35156945 modified "2023-10-08" @default.
- W35156945 title "DWT Image Compression for Mobile Communication" @default.
- W35156945 cites W1975358183 @default.
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- W35156945 doi "https://doi.org/10.1007/0-387-22979-5_14" @default.
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