which Wavelet is used for Jpeg2000 Image Compression?
https://stackoverflow.com/questions/10356732
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04-06-2021 - |
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which Wavelet is used for Jpeg2000 Image Compression ?
I was reading the Book on Wavelet Transform to find out how wavelet works for image compression but there are so many types of Wavelets mentioned in the book and i am confused which one is used for Jpeg2000 compression ?
These are the types i've found in the book.
Biorthogonal wavelet, Shannon or “Sinc” wavelets , Haar wavelets (the shortest), Coiflets wavelets.
P.S: I've no knowledge of image compression , just starting it with this project.
해결책
According to the Wikipedia article on JPEG 2000, two different varieties of Cohen-Daubechies-Feauveau wavelet are used: the CDF 5/3 wavelet for lossless compression, and a CDF 9/7 wavelet for lossy compression. (Both sorts are biorthogonal.) See here: http://en.wikipedia.org/wiki/Cohen-Daubechies-Feauveau_wavelet .
