comp.lang.idl-pvwave archive
Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
Home » Public Forums » archive » Re: convert image DN to unique values
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: convert image DN to unique values [message #72354 is a reply to message #72353] Fri, 27 August 2010 07:38 Go to previous messageGo to previous message
Spon is currently offline  Spon
Messages: 178
Registered: September 2007
Senior Member
On Aug 27, 3:34 pm, Snow53 <jennifer_wa...@hotmail.com> wrote:
> On Aug 27, 8:26 am, Paulo Penteado <pp.pente...@gmail.com> wrote:
>
>
>
>> On Aug 27, 11:23 am, Snow53 <jennifer_wa...@hotmail.com> wrote:
>
>>> Hi,
>
>>> I have an image where all the DNs are 0.  I need to change the pixel
>>> values to numbers that increase by 1 according to pixel location in
>>> the array. For example: 1,2,3,4,5,6,7..... 700. It seems like it
>>> should be easy to do... Any suggestions?
>
>>> Thanks!
>
>> It seems you want
>
>> image=lonarr(nx,ny)
>
>> where nx,ny are the dimensions.
>
> Thanks, but I can get the array with no problem.  What I'd like to
> figure out is how to change those values of 0 within the array, so
> that they increase by 1 for each position in the array.
>
> ... a better example.  If I have an array(2,2) where the values are
> 00  , and I want  01  , what is the best way to do so?
>
> 00                      2 3

image=lindgen(nx,ny)

Regards,
Chris

Report message to a moderator

[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: convert image DN to unique values
Next Topic: Search across open .pro files

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

Current Time: Fri Oct 10 14:17:58 PDT 2025

Total time taken to generate the page: 0.87558 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.0.7.
Copyright ©2001-2013 FUDforum Bulletin Board Software