comp.lang.idl-pvwave archive: archive » Surface fitting image with missing data

Home » Public Forums » archive » Surface fitting image with missing data

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

Surface fitting image with missing data [message #61811]

Wed, 30 July 2008 17:12

jradavenport
Messages: 6
Registered: July 2007

Junior Member

Hey all;

I have a 2-D array (essentially an image) with dimensions [n,m]

There is a large chunk in a corner of the image with no data. All
pixels have values greater than 1, except within this chunk, which =
0.

SFIT fits these as valid points and tips my surface (a plane) towards
this corner! I thought I would be terribly clever by doing the
following:

result = sfit( finite(image/(image gt 0)),1,/max_degree)

alas, SFIT isnt playing ball and makes a whole array of /NaN...

Thoughts? Is there a version of SFIT (or something similar) with a /
NaN keyword? A more clever way to fit a simple surface to an image
with missing data? Thanks folks

- Jim

Report message to a moderator

[Message index]

Surface fitting image with missing data

By: jradavenport on Wed, 30 July 2008 17:12

Previous Topic:	Re: Newbie question concerning summations/loops in IDL
Next Topic:	Re: How to extract sub-string from array

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 03:50:34 PDT 2025

Total time taken to generate the page: 0.95954 seconds