Re: NASA's images interpolated?

Hi Chris,

This is sorta what I was writing about. If you want sharp final images, 2x is
probably a practical if not a theoretical limit, but I stand corrected that at
2x the images would looks significantly out of focus. It's amazing what the eye
will accept.

--- Dave
--
----------------------------------------------------------------------
Pinprick holes in a colorless sky
Let inspired figures of light pass by
The Mighty Light of ten thousand suns
Challenges infinity, and is soon gone

david.nakamoto@xxxxxxxxxxx


"Chris L Peterson" <clp@xxxxxxxxxxxxxxxxxx> wrote in message
news:402t71hoggepbah6di8tjc058s629htnbm@xxxxxxxxxx
> On Sun, 08 May 2005 21:38:31 GMT, "David Nakamoto"
> <res07oeg@xxxxxxxxxxx> wrote:
>
>>If I had to guess, I would say that 2x magnification digitally is all you can
>>get away with on a single image, and even that won't be in really sharp focus.
>
> In order to print 8x10s at 250dpi, I have enlarged ST6 images as much as
> 10x. Doing that with Photoshop's bicubic interpolation doesn't introduce
> any obvious artifacts, and you don't see anything like pixelation. What
> you end up with is a very nice looking print. Of course, stars and edges
> are soft- but that isn't an artifact, that simply reflects the original
> resolution of the data.
>
> _________________________________________________
>
> Chris L Peterson
> Cloudbait Observatory
> http://www.cloudbait.com


.

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