View Single Post
  #7  
Old 01-07-2010, 11:21 AM
Shiraz's Avatar
Shiraz (Ray)
Registered User

Shiraz is offline
 
Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,918
hi

The kernel in the IRIS implementation is an unsaturated star and the algorithm works well if the kernel is changed regularly (eg between passes). Of course the big problem arises on saturated stars where the underlying stellar shape information has been entirely lost. But it does a really good job of tightening faint stars, in tidying up minor tracking problems and in extracting more detail on extended structures, so it can be worth doing anyway. The RL2 algorithm in IRIS seems to handle saturated stars much better than any other decon and does not do much damage to smooth surfaces. Would be very interested to know what is under the hood, but the manual does not say and I dont fancy doing any reverse engineering.

Jase, have not yet used star removal, but if you get rid of the stars, I guess that you infill from the surrounding regions. Deconvolution would then provide enhanced structure on the remaining extended objects, but you would not get any of the benefits on the stars - is that the case, or could you tidy them up before re-inserting?

regards ray
Reply With Quote