comp.lang.idl-pvwave archive: archive » aggregate pixel values within shapes or another raster

Home » Public Forums » archive » aggregate pixel values within shapes or another raster

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

aggregate pixel values within shapes or another raster [message #69391]

Thu, 14 January 2010 01:54

ivitseva
Messages: 15
Registered: December 2009

Junior Member

Dear All,
I have a time series of images (yearly data) on 1km spatial resolution
and I have a systematic grid in an ArcGIS shapefile format or a ArcGIS
grid format or envi BIL format, whatever suits best that has a 25km
spatial resolution. I need to calculate the mean and standard
deviation of all pixels within 1 grid zone, for all years and write
them out in a new image. Thus, in case of 26 input years on 1km
spatial resolution I need to have 26 output images on 25km spatial
resolution, where in each 25km cell the mean and/or the standard
deviation of the 1km cells within the respective grid is written.
Besdies opening and reading the files (at least that I have no
problems with) any clue please how to start it? Thank you very much in
advance, Eva.

Report message to a moderator

[Message index]

		aggregate pixel values within shapes or another raster By: ivitseva on Thu, 14 January 2010 01:54
		Re: aggregate pixel values within shapes or another raster By: wita on Mon, 18 January 2010 00:06

Previous Topic:	eMake Money Rs. 1000 per day
Next Topic:	How can we pass Greek symbols and formula to IPLOT?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Mon Dec 01 17:05:28 PST 2025

Total time taken to generate the page: 0.87673 seconds