Jamie Davison wrote:

> As far as smoothing greyscale bitmaps goes, do you have access to
> Photoshop or Paint Shop Pro, or the GIMP?  Any of those should be able to
> apply a gaussian blur to the images and save the resulting image out with
> a greater bit depth.

Be forewarned: I don't think the standard current version of the GIMP
supports 16-bit greyscale.  There is a 16-bit version of the GIMP (i.e.
16 bits for each of red, green, blue, alpha) being developed for the
film industry (with some subsidy), since they're the ones chiefly
interested in that sort of color depth at this point.  Eventually that
functionality will be merged back into the main branch of GIMP
development.  The 16-bit version is referred to as Hollywood GIMP.  It's
home page is http://film.gimp.org/index.html.  I haven't had a chance to
play with it yet, but I did some looking into this at a time when I
wanted a 16-bit heightfield.

-Mark Gordon

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