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Re: Chunk Array Decimation [message #63739 is a reply to message #32363]

Mon, 17 November 2008 13:40

Keflavich
Messages: 19
Registered: May 2008

Junior Member

Hi IDL group,
I've been using one of the drizzle algorithms posted at David
Fanning's site: http://www.dfanning.com/code_tips/drizzling.html (and
discussed on this group ~6 years ago) to combine timestream data into
maps. It works like a charm, but I need to take it to the next level:
cosmic ray removal.
Does anyone know how to implement this algorithm using a median
stack of each pixel instead of simply adding / averaging? I'll admit
I've been using this code rather blindly - my understanding of the use
of all the various indexes is very much incomplete - but it still
looks like this line:
vec6[vinds]=vec6[vinds]+total(data[ri1[vec_inds]],2)
means that you can only add to a running total; replacing 'total' in
the above statement with 'median' would not work. So, any ideas?

Thanks,
Adam

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[Message index]

		Chunk Array Decimation By: JD Smith on Tue, 01 October 2002 12:32
		Re: Chunk Array Decimation By: JD Smith on Fri, 04 October 2002 15:07
		Re: Chunk Array Decimation By: Jaco van Gorkom on Mon, 07 October 2002 08:51
		Re: Chunk Array Decimation By: JD Smith on Wed, 09 October 2002 17:18
		Re: Chunk Array Decimation By: JD Smith on Wed, 09 October 2002 17:19
		Re: Chunk Array Decimation By: Jaco van Gorkom on Thu, 10 October 2002 07:26
		Re: Chunk Array Decimation By: JD Smith on Thu, 10 October 2002 11:51
		Re: Chunk Array Decimation By: Keflavich on Tue, 18 November 2008 07:21
		Re: Chunk Array Decimation By: Wout De Nolf on Tue, 18 November 2008 02:52
		Re: Chunk Array Decimation By: Keflavich on Mon, 17 November 2008 13:40

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