[Benchmarking] portrayal and quality observations

[Frank Warmerdam]

Jeff McKenna wrote:
> On 10-09-02 7:02 PM, Andrea Aime wrote:
>>
>> As far as I know MapServer and GeoServer both use nearest neighbour
>> interpolation by default. I guess the other two default to
>> bilinear interpolation instead?
>>
> 
> True, MapServer uses NN by default, but we can quickly change to 
> bilinear if the group decides to use that.  What is the consensus?

Folks,

I will note that there is a huge penalty for NN in MapServer and with
properly built overviews (with averaging or similar resampling)
I would claim that NN is nearly equivelent to bilinear or other resampling.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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