Hi Christian,

> <scaleop  interpolation="3"/>

This enables the bicubic interpolation. Thanks!

But I've found another strange behavior and need your help with the
gt-imagemoasic-jdbc plugin: When I zoom into the map, then a black
border surrounds the map at high zoom levels. The border width seems to
be 1,5 pixel of raster data. I have attached 2 screenshots to explain:
one with interpolation=1 and another with interpolation=3 at zoom level
1:4k. The effect begins to appear at zoom level 1:34k. At zoom level
1:1k the whole map is black. At zoom level 1:100 the map gets white.
When I zoom in and out several times, then GeoServer hangs with high cpu
load.

Gerald

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