Hi Paul -- you might look at using IRAF, or at least go to iraf.net and post this question. --- On Sat, 10/30/10, Paul Lind <pulind@xxxxx> wrote: From: Paul Lind <pulind@xxxxx> Subject: [AZ-Observing] Image Processing To: az-observing@xxxxxxxxxxxxx Date: Saturday, October 30, 2010, 9:54 AM This is sort of a narrow technical question, but I could use ideas: I'm looking for image processing programs that do "guided deconvolution" or "inverse filtering" on photos with misshapen stars. That is, taking odd shaped stars and making them round using the knowledge of their shape. This differs from maximum entropy processing or blind deconvolution. But here the user instructs the program to study the shape (2-D point spread function) of stars in the image and then makes them round by deconvolving the entire image with that function. It would also be nice to do this on color images without de-layering them. This is sometimes known as Inverse Wiener Filtering. Paul Lind -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.