comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » about label regions

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: about label regions [message #30610 is a reply to message #30523]

Mon, 06 May 2002 11:12

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Xiaoying Jin (xje4e@mizzou.edu) writes:

> I know there is a function 'label_region' built in IDL. But that is for the
> case a lot of disconnected regions seperated by background. However, In my
> case, there is no backgound, all the regions connect with some other
> regions.
>
> What do I suppose to do in this case?

The reason for a lack of response yet may mean that
others are as confused as I am about what you are
asking about. It sounds to me like your regions
are contiguous to each other, but touching other
regions. If so, then a simple WHERE function can
pull out all the pixels with a particular value.
Or, HISTOGRAM could do it all at once. If you
need the indices of the pixels of a particular
value, you can obtain them with the REVERSE_INDICES
keyword.

Cheers,

David
--
David W. Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

Report message to a moderator

[Message index]

		about label regions By: xje4e on Sun, 05 May 2002 21:21
		Re: about label regions By: Ted Cary on Mon, 06 May 2002 22:22
		Re: about label regions By: Xiaoying Jin on Mon, 06 May 2002 22:53
		Re: about label regions By: Ted Cary on Mon, 06 May 2002 17:00
		Re: about label regions By: Xiaoying Jin on Mon, 06 May 2002 14:37
		Re: about label regions By: Ted Cary on Mon, 06 May 2002 14:13
		Re: about label regions By: Xiaoying Jin on Mon, 06 May 2002 12:53
		Re: about label regions By: David Fanning on Mon, 06 May 2002 11:12
		Re: about label regions By: Xiaoying Jin on Mon, 06 May 2002 10:05

Previous Topic:	Mac OS X
Next Topic:	suppressing carriage return in PRINT

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 14:35:31 PDT 2025

Total time taken to generate the page: 0.71854 seconds