how many coefficients were retained after reconstruction (IDWT)? and how does the quality of reconstruction vary with respect to number of DWT coefficients?

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santhosh kumar buddepu
santhosh kumar buddepu on 16 Oct 2021
I have used inbuilt 'wdencmp' function for image denoising and my image got denoised, but I want to know how many coefficients were retained after reconstruction (IDWT)?
dwtmode('sym');
[thr,sorh,keepapp]=ddencmp('den','wv',input);
imgden=wdencmp('gbl',input,'db7',7,thr,sorh,keepapp);
and how does the quality of reconstruction vary with respect to number of DWT coefficients?

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