Re: [Gimp-user] Problem with the Newsprint filter?

[peter kostov <gimp light-bg com>]

On 01/09/2012 05:20 PM, Jay Smith wrote:
> On 01/09/2012 10:00 AM, Zweibaby wrote:
> > > So, yesterday I was trying to halftone an image. Everything was
> > > working fine, but I couldn't figure out how to use it the way I
> > > wanted to. So I found a tutorial. I read it, figured out what I was
> > > doing wrong, went on my way. Everything seemed fine.
> >
> > > Then I went to use my newfound knowledge, and lo and behold, the
> > > Newsprint filter stopped working. No matter what I tried, the preview
> > > image looked just like the original. And when I tried applying the
> > > filter anyway, figuring maybe something was just up with the preview
> > > panel, nothing happened. The filter pauses to load when I change
> > > something, acting like it's working, but nothing happens. The closest
> > > thing I've been able to get was the image completely disappearing
> > > when I change a certain setting (switch to intensity, in case you
> > > were wondering). I tried googling my problem, but all that gets me is
> > > tutorials and the how-to-use guide. I was hoping someone here would
> > > know what's wrong and how to fix it.
> >
> > > Thanks in advance!
> >
> > Well, I got it to sort-of work now. It's not exactly how I want it,
> > and I still haven't figured out how it suddenly switched the way it
> > wanted to work, but I pieced something together. I'd still like to
> > know why it did what it did, though.
>
> Is it possible that your image has multiple layers and that
> (unknowingly) you were trying to use the filter on a layer for which the
> filter would have no effect?

Or any chance that your image is in Grayscale mode? The filter will 
still work, but the effect will be not as if the image is RGB.

Greetings,
Peter