Wavelet-based image compression by adaptive scanning of transform coefficients
نویسندگان
چکیده
An image compression algorithm exploiting the interband and intraband dependencies in a multiresolution decomposition structure is introduced. The transform coefficients, other than those which belong to the DC band, are adaptively scanned into two different 1-D arrays. These arrays are generated by using the observed statistical behavior of wavelet transform coefficients, in an effort to maximize local stationarity. The arrays are then entropy coded separately. The algorithm is also extended for the compression of wavelet packet transform coefficients. Experimental results indicate that the algorithm has competitive performance.
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ورودعنوان ژورنال:
- J. Electronic Imaging
دوره 11 شماره
صفحات -
تاریخ انتشار 2002