[sane-devel] Lineart emulation

[Oliver Schwartz]

Hi,

> > Same applies to interpoliation. I have a huge patch in my inbox
> > that adds scaling to my avision backend just because some
> > el-cheapo OEM scanners do not appear to deliver any resolution -
> > and for the highest resolution of 2400 dpi have a memory shortage
> > and thus the author implemented amorphic scans @1200x2400 with
> > software scaling to 2400x2400 to compensate this.
> >
> > In the long run some plugin subsystem (think ALSA) to plug
> > scalers together would be a big win. Trivially one could
> > implement this by adding a backend (simillar to the dll one) with
> > that functionality shadowing any other backend.
>
> Well, also the plustek backends do have such scaling/interpoliation
> stuff, maybe I'll find some time to make a proposal for such a lib

yes please. Interpolation should be added to the snapscan backend as 
well at some point (for the same reason as in the avision backend, to 
scale from amorphic scan).

/Oliver