2053Re: [genphoto] Correcting Old Blurred Photographs?
- Mar 1, 2004Susan Farmer <sfarmer@...> wrote:
> > I wrote:Watkins, Sadun & Marenka. Modern Image Processing: Warping, Morphing
> > > either way: In theory, it is probably possible, but this would be more
> > > akin to the sort of image processing that NASA does to enhance the detail
> > > in Hubble space telecope images, than it is to anything that consumer,
> > > or even pro, photo software can do.
> > By a funny coincidence, today my employer was giving away some old
> > books, and I picked up one on image processing that happens to
> > discuss this very subject.
> Oooh. Reference? Book title?
and Classical Techniques. Academic Press Professional (a division of
Harcourt Brace & Co.), 1993.
Note, however, that they do not really deal with correcting anything
other than the sort of generic, random (Gaussian) fuzzyness typical
of out-of-focus pictures or atmospheric turbulence in astronomical
photos. They mention that correcting other problems can be done if
you can find the point spread function, and that, if the image
contains a single point object (like a star), the point spread
function can be calculated from the image itself, but do not describe
how to do so, nor how to estimate the point spread function if the
image does not contain a point object.
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