A Wavelet Packet Transform Based Image Coding Algorithm
نویسندگان
چکیده
An image compression algorithm based on wavelet packet transform is introduced. The algorithm extends the parent-children link established across dyadic wavelet decomposition bands to a parent-children link across wavelet packet decomposition bands. Then, a method proposed for the efficient encoding of dyadic wavelet transform coefficients [1] is used for encoding of wavelet packet transform coefficients. The method exploits interband and intraband dependencies of the transform coefficients. Experimental results show that wavelet packet transform brings consistent improvement over dyadic wavelet transform.
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