comp.lang.idl-pvwave archive: archive » Re: I have committed a sin CONGRID

Home » Public Forums » archive » Re: I have committed a sin CONGRID

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

Re: I have committed a sin CONGRID [message #28384 is a reply to message #28380]

Thu, 06 December 2001 06:22

Jaco van Gorkom
Messages: 97
Registered: November 2000

Member

dmarshall@ivory.trentu.ca wrote:
> I was using CONGRID to resize an RGB image array which is [3,x,y] large
> I just realized CONGRID will not resize the R,G, and B planes separately.
> I will get a kind of smeared/diluted image, which looks OK, but....
> I _know_ it's obvious ... now.

Is it obvious? If you resize to CONGRID(image, 3, newx, newy) ?
From the online help (IDL 5.4):
[...] when shrinking an array, [...] CONGRID just resamples the array.
[when expanding an array,] CONGRID automatically uses linear interpolation
if the input array is 3-dimensional.
So, as long as you do not resize the first dimension (3), shouldn't you be
ok?

Jaco

Report message to a moderator

[Message index]

		Re: I have committed a sin CONGRID By: dmarshall on Thu, 06 December 2001 07:35
		Re: I have committed a sin CONGRID By: Jaco van Gorkom on Thu, 06 December 2001 06:22

Previous Topic:	Re: [Offtopic] Re: Strange problem
Next Topic:	Re: convert string into the name of a variable

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Mon Dec 01 06:03:55 PST 2025

Total time taken to generate the page: 0.96419 seconds