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Archiver > Freepages-Help > 2003-07 > 1057732137


From: Ken McInnes <>
Subject: [FreeHelp] Scanning photos
Date: Wed, 09 Jul 2003 16:32:30 +1000


G'day Brenda,

You wrote:

> ..... I've scanned most of
> them at 100 dpi, the lowest resolution on my scanner, and uploaded them to
> my directory, when viewing them on my pages, they seem to have a waffle
> effect. How can I fix that?

The 'waffle' effect is a 'moire' effect caused by the fact that you have scanned
photographs that have been printed in a newspaper or magazine, and the pattern
of 'dots' or 'dot screening', has been accentuated by the scanning process.

There are many ways of solving this, my favourite is to angle the image at about
15 degrees on the scanner, scan the image, then rotate the image in your photo
editing software program.

Sometimes you can get better results if you scan at a higher resolution, then
resize, then rotate. Then other times you can get better results if you scan at
a higher resolution, rotate, then resize. It all depends on the scanner, the
original, and your image editors.

If you want to retain the 'newpaper look' then I have had success scanning at 75
dpi, and saving as a largish .gif file, for example see:
<http://freepages.genealogy.rootsweb.com/~kenmac/famdocs_mcinnes/news_mcinnes_d_1950.htm>;
or
<http://freepages.genealogy.rootsweb.com/~kenmac/famdocs_lawson/news_lawson_je_med1975.htm>;

Hope this helps,

regards

Ken McInnes
Ringwood North VIC AUS
--------------------------
Open the gateway to my family history
<http://freepages.genealogy.rootsweb.com/~kenmac/>;
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