Robert, I had a similar problem, read below

Quoting Robert Buckley <robertdbuck...@yahoo.com>:

> Hi,
>
> There are many threads which explain how to create an imagemosaic or pyramid,
> but not so many regarding the preparation of the raw data.
>
> I have ~1300 orthophotos which have been bought for desktop use in ArcGIS.
>
> Resolution (X,Y) =  0,4m, 0,4m
> columngs/rows = 5003 x 5003
> total Area = 2km x 2km (4km²)
> Format = TIFF
> Size = ~70mb
>
>
> total size of region: 5000km²

I had to serve orthophotos covering Austria, ~ 83000 km2

>
> I have been asked if I can serve these with geoserver. The   
> alternative seems to
> be the purchase of ArcServer which is a cop-out in my view!

I developed the ImageMosaicJDBC plugin to kick out ArcServer at my  
customers  site.

>
> My first problem is the preparation.
>
> 1. Transform all photos into wgs84
> 2. Convert to geoTIFFs
My photos had three different coordinate systems, GK28,GK31 undGK34  
and I had to transform them to Austria Lambert. I hope your photos  
have a common CS.

1) use gdal_merge to produce a big image (I produced an Erdas Image )
2) use gdal_transform to transform to wgs84
3) Decide  file based/ jdbc based
4) I did it jdbc based and used gdal_retile for tiling/pyramid building

> and now i´m a bit lost! what are my choices to take this further?
> 1. Do I have to convert 1300 photos using the gdal_retile and upload  
>  them into
> geoserver?
> I can´t image having to upload 1300 pyramid stores into geoserver!

Not a good idea, one store should be fine :-)
>
> Any help would be great.
>
> Thanks,
>
> Robert

If you decide for jdbc based,  I need more details about your environment.

Cheers
Christian



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