Description: Reconstruction of wavelet decomposition, noise reduction, compression coding, compression performance analysis xijie.m pictures a wavelet decomposition for the approximation, horizontal details, vertical details, diagonal details xijie2.m pictures 1 and 2 decomposition and reconstruction, approximation, the level of details, vertical details, diagonal details noisereduce.m Image 1/2 noise reduction. noisereduce2.m full value mycompress.m threshold wavelet de-noising images BIOR3.7 the first and the second compression, with the first and the second extract mycompress2 . m analysis of wavelet decomposition coefficients to 0 and the coefficient of the percentage of the number of compressed images the percentage of residual energy
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