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Re: mosaic_doit [message #56577 is a reply to message #29417]

Fri, 26 October 2007 10:33

David Streutker
Messages: 34
Registered: June 2005

Member

On Oct 26, 10:00 am, Jean H <jghas...@DELTHIS.ucalgary.ANDTHIS.ca>
wrote:
> d.po...@gmail.com wrote:
>> Hi folks,
>> I am mosaicking 90 landsate ETM+ data(.tiff). I want to understand
>> if it is possible we read this amount of data and put all together to
>> get a big . tiff by using mosaic_doit in the for loop or not??
>> Cheers
>> Dav
>
> well, only you can tell this...
>
> requiredMemory = Xsize * Ysize * nb images * nb of bits in your data type
> This will give you the minimum required memory... you likely need some
> more do actually perform the mosaicking..
> then run memTest to find out if you have enough memory or not.
>
> Jean

I think it should be possible. I don't think the entire image needs
to be read into memory--ENVI seems to be able to handle memory issues
fairly intelligently. For instance, I've created a 4GB mosaic from
80+ tiles in Windows with only 3GB of RAM.

-David

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[Message index]

		mosaic_doit By: Cinthia Loial on Thu, 14 February 2002 05:57
		Re: mosaic_doit By: d.poreh on Fri, 26 October 2007 10:45
		Re: mosaic_doit By: David Streutker on Fri, 26 October 2007 10:33
		Re: mosaic_doit By: Jean H. on Fri, 26 October 2007 09:00

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