looking for a mipmap generator in java

Question

I need to generate a mip map from an arbitrary image (different formats, not necessarily squared) in java. Because I don't like to reinvent the wheel I spend some time looking for a stand alone java class, without any luck.

Does anyone know a simple class solving my problem? Should run on android ;) .

notes:

• I know OpenGL can create MipMaps BUT I needed them outside of any OpenGL context.
• The image is a big one ( 16K x 8K ).
• creating it in OpenGL and exporting it issn't an option because of the size.

Answer 1

Cant you hand the rendering off to a server farm/ "the cloud"?

Use android only for the real necessary client calculation. Amazon nowadays provides VMs with graficcards.