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Re: Zoom out of astronomical image preserving header info [message #42686 is a reply to message #42611]

Fri, 18 February 2005 03:19

burkina
Messages: 32
Registered: February 2005

Member

Thank you Marshall for your reply.

The problem with hrebin (and hcongrid) is that they don't zoom the
image out as I need (like atv for example). They will produce an image
with that number of pixels, so that if the zoom factor is 2, an
original image of, say, 300x300, will become 600x600. This means a lot
of time in processing the image when you need a very large zoom factor
(as in my case) and enormous image files. That's not what I need. I
actually need a costant image size, but with the original image
shrinked to the desired dimension.
In practice, I need a functionality completely equivalent to the ATV
zoom, together with the possibility to re-center the final image where
I want. I need space outside the image with the correct RA and DEC
coordinates. ATV does it, but it can't do other things I need. That's
why I can't use it directly.
I'm sure it's easy....

Stefano

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[Message index]

		Re: Zoom out of astronomical image preserving header info By: mperrin+news on Thu, 17 February 2005 10:51
		Re: Zoom out of astronomical image preserving header info By: burkina on Fri, 18 February 2005 03:19

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