[Mapserver-users] How to show high resolution image Landsat

[Vincent Schut]

Sarawut,

Mapserver should display your image at it's original resolution if you zoomed 
in far enough. However, mapserver 3.6.x does not support 24bit color output. 
Maybe the degradation that you see is not the spatial resolution but a 
degradation in color? Mapservers dithering is not really sophisticated... You 
will get far better results if you scale down your original 24bit color 
landsat image to 8bit (using a color palet) and use that 8bit image in your 
map file. You could do that with tools like imagemagick or probably other 
image processing programs.

Regards,
Vincent Schut.

On Wednesday 14 May 2003 09:41, Sarawut Ninsawat wrote:
> Dear all
>
> First I wish to show my Landsat image on mapserv 3.6 (RH8.0) with high
> quality as same as my original TIFF file.
> Even I set the minscale to only 5000. However,this is still not nice image
> but it can zoom to that extent. I think the reason is Pixel size of output
> image. How can I improve the resolution ?
>
> Best Regard
>
> Sarawut
>
>
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-- 
______________________________________
Vincent Schut
Sarvision B.V.
Wageningen, The Netherlands
www.sarvision.com