Digital BW, The Print

No, it is not very obvious:)

First thing you want to do is scale your canvas to the final size 
that you want since panotools doesn't automatically do this for you.

then,

Filters->Panorama Tools->Correct->Prefs->More-> set interpolation 
scheme... back... Scale->Options-> set Width and Height (in pixels) 
so that the image is increased in size above the enlarged canvas size 
(ie. if you increase your canvas size by a factor of 2, you will want 
to set your Width and Height to be a factor of 2 over your canvas 
size)... ->OK

...I don't know if that is clear enough... so if you start with a 
4x6" image and want to double its size, you use Image->Canvas Size to 
make it 8x12" (centered) ...if the pixel dimensions of the resulting 
canvas are now, say, 800x1200 pixels you will want to set Height and 
Width in Panorama Tools to be 1600 and 2400 pixels respectively so 
that the interpolated up-scaled version will fill the canvas.

It is rather easy once you figure it out:)

Personally, I don't think up-sampling buys your anything... but 
that's how you do it.

mark

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Tyler Boley" 
<tyler@t...> wrote:
> I would like to do some testing using panotools for interpolation. 
It
> seems to be oriented for many other kinds of image distortion,
> including stitching panoramic imagery. Can anyone point in in the
> right direction for how to use it for simple porportional scaling?
> However it's done is not obvious in the interface or docs.
> Thanks,
> Tyler