[luatex] Override image resolution?

[Patrick Gundlach]

Hello Reinhard,

> what I would try first is to check whether other programs like sam2p
> or convert (ImageMagigck) can process the broken files properly.

I don't know what tools the user has, so I cannot rely on any external tools for now.

Thank you for your suggestions

  Patrick

(I'll stick for xsize and ysize for now, which seems to be fine except for a LuaTeX warning about an arithmetic overflow or something similar)