comp.lang.idl-pvwave archive
Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado

Home » Public Forums » archive » Label_region and Erosion
Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend 
Return to the default flat view Create a new topic Submit Reply
Re: Label_region and Erosion [message #13385 is a reply to message #13283] Thu, 05 November 1998 00:00 Go to previous messageGo to previous message
Alex Schuster is currently offline  Alex Schuster
Messages: 124
Registered: February 1997
Senior Member
Struan Gray wrote:

> So you can always make a binary mask from your greyscale image,
> and use that to define your regions. The most obvious way is to
> manually set pixel values using the output of a WHERE call, but often
> it is possible, and faster, to use a array comparison like:
>
> mask = image > threshold_val

Slight correction: mask = image gt threshold_val


Alex
--
Alex Schuster Wonko@weird.cologne.de PGP Key available
alex@pet.mpin-koeln.mpg.de
[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: IDL 5.2 reviews?
Next Topic: IDL colors on Linux XFree86

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Fri Oct 10 03:42:45 PDT 2025

Total time taken to generate the page: 2.00007 seconds