[softwarelist] Re: Image display quality in DPlingscan

In a recent message           Tim Powys-Lybbe <tim@xxxxxxxxx> wrote:

> In message of 23 Apr, Dave Barnett <dave@xxxxxxxxxxxxxxxxx> wrote:

>>  I'll now go and have another try at scanning some family
>> trees that I found in an old book.

> I have taken several hints from a company, now dormant, called
> ArchiveCDBooks.  They scanned loads of old books, many with family
> trees. They achieved very readable and relatively small files using
> their overhead book scanner.  They probably had superior software to
> clean up the images.

They did indeed.  I have bought some of their CDs.  Somewhere on their 
site they had a description of their process.  They did a 
straightforward cleanup (that is an oxymoron in this context) and then 
a selective expansion to overcome the curvature of the page at the 
spine (custom software, I don't think it is released commercially).  A 
searchable index was produced where the original pages were good 
enough for OCR.

> But I have found that the better part of their
> results can use achieved with Imagemaster (call a spade a spade) by
> following their practices:
>
>   (a) scan at 200 dots per inch,
>   (b) scan in black and white.

> You may have to adjust the brightness for difficult documents and very
> difficult ones will have to go to grey-scale.

I find similarly.

-- 
Dave
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