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Q: about Richardson_Lucy Alg. (deconvolution) [message #16300]

Thu, 15 July 1999 00:00

Herbert H. Tsang
Messages: 2
Registered: July 1999

Junior Member

Anyone is familiar w/ the Richardson_Lucy Deconvolution alg.? I have found
a IDL program (lucy_guess.pro) that claims to perform this deconvolution.

However, when examining the code I am not quite sure if it is correct. in
lucy_guess.pro line 89 it has this loop
for k=0,n_iter do begin
weight = convol(old,psfr)
new = old * convol( (data/weight) ,psf)
old = new
endfor

but shouldn't it be
for k=0,n_iter do begin
weight = convol(old,psfr,/edge_truncate)
new = old * correlate( (data/weight) ,psf)
old = new
endfor

Any idea??

-- Herbert

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