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Re: how many array elements with a certain value in a row [message #70278 is a reply to message #70277]

Thu, 01 April 2010 06:02

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Jeremy Bailin writes:

> Does anyone have a nice simple efficient solution to this problem (I
> have a simple inefficient solution and a vague sketch in my mind of a
> convoluted but probably efficient solution):
>
> I have an image in which many pixels are saturated (=65535, they're
> short unsigned). I want to treat each set of consecutive saturated
> pixels in a row as a single unit and know how many saturated pixels in
> a row there are. So I would like to have a list that contains (a) the
> rightmost pixel of each set of consecutive saturated pixels, and (b)
> how many saturated pixels there were in the set.

I'm guessing you could probably work something out with
LABEL_REGION. As for efficiency...

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: how many array elements with a certain value in a row By: jeanh on Thu, 01 April 2010 08:22
		Re: how many array elements with a certain value in a row By: Jeremy Bailin on Thu, 01 April 2010 08:11
		Re: how many array elements with a certain value in a row By: Chris W on Thu, 01 April 2010 07:14
		Re: how many array elements with a certain value in a row By: Jeremy Bailin on Thu, 01 April 2010 06:56
		Re: how many array elements with a certain value in a row By: Chris W on Thu, 01 April 2010 06:48
		Re: how many array elements with a certain value in a row By: Jeremy Bailin on Thu, 01 April 2010 06:40
		Re: how many array elements with a certain value in a row By: ben.bighair on Thu, 01 April 2010 06:17
		Re: how many array elements with a certain value in a row By: Gray on Thu, 01 April 2010 06:03
		Re: how many array elements with a certain value in a row By: David Fanning on Thu, 01 April 2010 06:02

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