----- Original Message -----
Sent: Friday, April 12, 2002 1:39
PM
Subject: Re: [APML] something
different...
Hello,
Been doing some studying the
last few days... trying to learn more about post processing techniques with
the raw CCD data... here's something you will probably want to
see.
Instead of averaging the
six M51 shots, I co-added them together... this is closer to "stacking"
the images in the old days with film... more detail shows up, but also more
noise. After this, I used CCDsharp to add some mild deconvolution, then I
added a mild unsharp mask to make the stars hard edged. My goal... to bring
out as many of the anonymous galaxies behind M-51 as possible.
I kept a portion of the galaxy
in each shot for scale... to me it is mind boggling that I am using M-51 as a
reference object... the real picture in each of these shots are the many
galaxies (and perhaps very faint stars) that populate the field. I tried to
make the stars hard edged so we might hazard a guess between faint star and
galaxy...
Here's the
results:
Have a good
one,
Tony