TIF or ECW: which is faster?
Frank Warmerdam
warmerdam at POBOX.COM
Thu Jan 12 06:57:48 PST 2006
On 1/12/06, Howard Butler <hobu at iastate.edu> wrote:
> Chris Hodgson of Refractions had a great presentation at MUM3 about
> serving large scale raster using compressed and uncompressed data.
> The short answer is if you've got the space, TIF is going to be
> faster.
Luca,
Note that some of Chris' problems were specific to the GDAL
implementation of the file formats at that time. But nevertheless,
as Howard suggests, for MapServer purposes, if you can spare
the space a properly tiled TIFF with overviews will give better
render speed than the various wavelet compressed formats.
Best regards,
--
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I set the clouds in motion - turn up | Frank Warmerdam, warmerdam at pobox.com
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and watch the world go round - Rush | Geospatial Programmer for Rent
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