what is the basic difference between the Discrete Fourier Transform and the Wavelet Transform ? and why does JPEG2000 preferred DWT over DCT or DFT ?
DFT and DWT difference?
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fourier-analysis
image-processing
wavelets
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0"what is the basic difference" - they use different... wait for it... *basis functions*. DFT uses complex exponentials, while DWT uses wavelet functions. – 2012-04-19
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0Re: second question, see [this](http://www.jpeg.org/.demo/FAQJpeg2k/wavelet-transform.htm). – 2012-04-19
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1Do you know of dsp.stackexchange.com ? – 2012-04-19