Hi Fred,
The answer is yes. The easiest method is to image a star to serve as a point source. This is a standard approach with observatories and was used with the Hubble before the optical correction in 1994. It has subtle pitfalls. For example, the size and shape of your blur function (called a point spread function (PSF)) depends on the color of the object. If you use the star to clean up an image of Mars, you may get ringing effects near sharp edges.
You can also model the telescope and atmosphere to create a synthetic PSF. I have never heard of this actually being done. More likely, one would create a synthetic PSF and use it as a starting point for a blind deconvolution method.
Best Regards,
Jim C
Quote:
Originally Posted by Bassnut
Yes, I have found the points you make valid just by trial and error ;-).
I just had a look at your product, looks very interesting, I wasnt aware of it, im tempted to try it, many of us here use CCDstacks decon filter.
Out of curiosity, you use blind decon. Is it possible to characterise a given telescope optics and seeing to produce an umm, "not blind" algorithm? (thats a stab in the dark, a blind guess ;-).
|