low quality image output

[thomas bonfort]

hi.
is your aerial photo a tif source?
as far as I remember, mapserver uses closest neighbour interpolation
for downsizing the original image, which results in poor quality. you
should use the gdal utility gdaladdo to precompute downsized images
(using the "average" filter), and make sure that the file is 24bit and
not  color indexed
tb

On 10/12/05, Richard Alexander <raxpl at anglesey.gov.uk> wrote:
> thanks Matt, png24 makes no difference at my end...
>
> I have started on a work around - as i know the image is 1km square i can
> use the current scale to do an image chop on it and display this in the Tk
> placeholder (but this is painfull because you have to apply the same to
> neighbouring tiles which overlap the current view !...been here before I
> think, with an early version of arcview)
>
> Rich
>