Re: [OSSIM] Creating Pan-Sharpened Imagery in Imagelinker

[Garrett P. <po...@cf...>]

Hello Scott:

Wow, Alaska!!  That's pretty far from florida where I am at.

You can manually specify the GSD when doing a file\/save as under  
imagelinker.  You can either modify the view under the edit view  
window before doing a save as or you can do it after the save as is  
performed under the gsd entry field.  If I were you, I would try the  
FSIM fusion.  It will give you better results.  The description on  
how to do this is on page 57 of the book of OSSIm online manual that  
can be downloaded here:

http://ossim.telascience.org/ossimdata/Documentation/ 
ossim_users_guide.pdf

Once selected you will need to change the blur kernel and the steps  
to do this is shown in the guide.  If you have problems please email  
the list.  Note, the gain is not adaptive so I would use it  
sparingly.  I would like to make it adaptive so that the gain would  
only apply to edges.

Also I will log this into bugzilla.  I think the default return for  
the view should be from the Pan band side for full res and not the  
color input that is being enhanced.

Take care

Garrett

On Dec 21, 2006, at 8:29 PM, Scott Arko wrote:

> Hello,
>
>
> I am trying to use imagelinker to create pan-sharpened imagery.  I  
> have
> an image with 10m spatial resolution in color and a pan image with  
> 2.5m
> resolution.  I am able to to combine them using color normalized  
> fusion
> and the resulting product looks good.  However, when I try to save the
> product it wants to save at the 10m resolution and will not allow  
> me to
> save at the 2.5m resolution that I want.  I have tried moving the  
> layers
> around as well as merging bands, etc to no avail.   Am I missing
> something?
>
>
>
> Thanks,
>
>
> -- 
> Scott Arko
> Deputy Director				
> Alaska Satellite Facility
>
>
>
>
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