Re: Printer DPI vs Resampling

["David A. Belew" <dbelew@mcn.org>]

Genuine Fractals has 2 compressions, 1) lossless and 2) "virtually lossless". I
normally us the " virtually lossless" which has a compression ratio of approx.
1:10.
If I scan a transparancy at 2820 dpi, it = about a 31 meg file. I normally save
at the 1:10 ratio and can enlarge small part of the image, say 25% up to an 8 x
10 or even larger, increase the resultant file size back up to 29-31 Megs and
sent the file to the printer at 300 dpi to either my 700 of 1270. The resultant
print will look = to an uncropped print ( this is of course by eye). This is of
course if the original transparency or image is of high quality--that is a
given. (GIGO).
( I owned/managed a custom photo lab for many years, both high quality B/W for
repro and Ciba/Ilfochrome for photo artists).

When I first obtained the program, and was experimenting, I downloaded a file
that I created from my Kodak DC 260, to Altamira for evaluation. They claimed I
could have printed it up to 20 x 24"!! I only have the capability to go to 13 x
19", so I can't verify their report. It is also great for making reductions,
i.e. jpeg's for the web.

It is a Photshop Plug-In, and you can download a trial version from their web
site.
My only objection to the progam is that it is   VERY ram hungry, and tends to be
a bit slow to open and save files.

Here is their web site URL:

http://www.altamira-group.com/

Dave Belew

Austin Franklin wrote:

> > I personally use Genuine Fractals 2.0...I
> > can then resize to just about any size, up or down with little or no loss.
>
> I am curious how do you know what the loss is, are you just telling by eye?
>
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--

Dave Belew

http://www.homestead.com/davebcamera/Homepage.html

http://www.homestead.com/kelleyhousemuseum

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