Archived posting to the Leica Users Group, 2001/01/15

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Subject: Re: [Leica] Digital Image File Formats
From: "B. D. Colen" <bdcolen@earthlink.net>
Date: Mon, 15 Jan 2001 09:24:13 -0500
References: <5.0.2.1.2.20010114175512.01e91440@127.0.0.1> <5.0.2.1.2.20010114220115.01eae620@127.0.0.1>

Thanks, Tina...Math or no - and I probably failed more math courses than
the average LUGer even took! - your explanation makes - some - sense.
I'll check it out.

B. D.

Tina Manley wrote:
> 
> At 08:42 PM 1/14/01 -0500, you wrote:
> >I'm sure I'm missing something here, Tina...But I've been saving my
> >files as neg size, 4000 dpi, Tiff files, compressed to about 2/3 of
> >their size...so a 20 meg 8 bit gray scale file ends up stored at about
> >14-17 Meg....open it up, resize it to what ever you want in what ever
> >format, and go....AM I missing something? :-)
> >
> >B. D.
> 
> B.D. -
> 
> The explanation I have gotten is that when you depend on Photoshop or
> another photo editing program to resample the file, you are either deleting
> random pixels or adding manufactured pixels.  Supposedly Genuine Fractals
> uses a mathematical formula (fractals) that makes the whole process much
> more efficient and undetectable.  Math is not my forte and to even think
> about fractals makes my hair hurt.  I trust them and they do a great
> job.  Nikon must think the whole thing works or they would not be including
> the software with their new scanners.  You can save a 4 meg file and open
> it as a 20 meg file with no loss of quality.  You can make a 20 meg file,
> save it as a 2 meg file and open it as a 60 meg file with no loss of quality.
> 
> Check it out:
> 
> http://www.altamira-group.com/html/how/f_howgf2.html
> 
> I have had no problems with Genuine Fractals except that some filing
> programs don't recognize the .stn file format, but I imagine that will
> change with Nikon's use for their scanners.
> 
> Leically,
> 
> Tina
> 
> Tina Manley, ASMP
> http://www.tinamanley.com

In reply to: Message from Tina Manley <images@InfoAve.Net> (Re: [Leica] Digital Image File Formats)
Message from Tina Manley <images@InfoAve.Net> (Re: [Leica] Digital Image File Formats)