Tool to clean scanned pictures

[Paul Smith]

On 8/17/07, Bill Davidsen <davidsen at tmr.com> wrote:
> > I have got a TIF picture like the one at
> >
> > http://phhs80.googlepages.com/example01.png
> >
> > Is there some tool to get rid of the gray around the word 'Because'? I
> > have already tried unpaper, but not having been successful.
> >
> Depending on what you really want to do with this, you can use the
> netpbm package, and reduce the image to b/w in a controlled way. If you
> want to keep gray levels overall, you need another tool.
>
> I use those tools when scanning newspaper articles, to reduce the image
> to black and white for minimal storage requirements.

Thanks, Bill. True, I want to transform it to black and white. I will
have a look at netpbm.

Paul