Digital BW, The Print

Austin,

Surely not. If I take an image of 10 black and white lines of pixels (to
keep on-list) and interpolate one new line by Nearest Neighbour in PS, it is
either black or white, not gray. I only get grey lines interpolated (along
with existing black & white lines being altered to grays) using Bilinear or
Bicubic in PS. That is why I used the words 'duplicate' or 'copy' originally

Bob Frost


----- Original Message -----
From: "Austin Franklin" <darkroom@...>

> Hi Bob,
>
> > Surely Nearest Neighbour
> > interpolation just duplicates pixels (or should I say
> > quadruplicates?).
>
> Nearest neighbor takes the nearest neighbors, adds them up, then divides
by
> the number, and basically gives an average.  It certainly isn't an optimal
> interpolation algorithm, and in fact, is the most basic interpolation
> algorithm I can think of.