[bookshare-discuss] Re: Any tips for scanning pages with photo images?
- From: "Shelley L. Rhodes" <juddysbuddy@xxxxxxxxxxxx>
- To: <bookshare-discuss@xxxxxxxxxxxxx>
- Date: Fri, 05 May 2006 11:26:08 -0400
I think the higher DPI works better because often times in kids books the
text of the words is glued into the picture, and the higher resolution helps
it understand what is text and what is background color, is not always a
grantee, but usually works pretty good.
And yep, if the book has clearly defined "text pages" and picture pages, in
a children's book then I will use only 300 dpi.
For adult books it is rare, I will not say it happens, but it is rare to
encounter a book where the text and pictures are merged together. So the
300 dpi is better for them, plus as you pointed out faster, smile.
Shelley L. Rhodes B.S. Ed, CTVI
and Judson, guiding golden
juddysbuddy@xxxxxxxxxxxx
Guide Dogs For the Blind Inc.
Graduate Alumni Association Board
www.guidedogs.com
Dog ownership is like a rainbow.
Puppies are the joy at one end.
Old dogs are the treasure at the other.
Carolyn Alexander
----- Original Message -----
From: "Tiffany H. Jessen" <tjessen@xxxxxxxxxxxxx>
To: <bookshare-discuss@xxxxxxxxxxxxx>
Sent: Friday, May 05, 2006 9:20 AM
Subject: [bookshare-discuss] Re: Any tips for scanning pages with photo
images?
I understand what you are saying about large verses small print, and why you
change the DPI. It makes sense that the smaller print has to be examined
closer, thus the need for higher DPI as you said, but it sounded like you
use a high number for the children books which have larger print, and then
you use lower DPI for the adult ones, which is most likely smaller print. Is
that not contradicting?
I don't know. Maybe I read something wrong here. Typically I just leave mine
at 300 until something isn't coming out well. Changing the DPI can clearly
affect your results at times, but with one of my scanners at least, 400 DPI
slows down my scanner progress so much I'd almost rather deal with the
occasional error. A lot of the stuff I scan is mail, most junk at that, so
inaccuracy is not a problem.
Tiff
----- Original Message -----
From: "Shelley L. Rhodes" <juddysbuddy@xxxxxxxxxxxx>
To: <bookshare-discuss@xxxxxxxxxxxxx>
Sent: Thursday, May 04, 2006 11:20 PM
Subject: [bookshare-discuss] Re: Any tips for scanning pages with photo
images?
> Rick,
>
> For scanning kids books which have pictures I use
>
> Grayscale, 400 DPI, and use Scansoft Accurate as my engine.
>
> For adult books with pictures I usually scan with
>
> Grayscale, 300 dpi and scansoft or fine reader as my OCR engine.
>
>
> for CD booklets I treat them like kids picture books. Remember the
> smaller
> the print, the larger the number of dots per inch.
>
> Course, some CD covers and booklets have very unusual fonts and colors and
> that can really mess with the OCR no matter what you use.
>
>
> Shelley L. Rhodes B.S. Ed, CTVI
> and Judson, guiding golden
> juddysbuddy@xxxxxxxxxxxx
> Guide Dogs For the Blind Inc.
> Graduate Alumni Association Board
> www.guidedogs.com
>
> Dog ownership is like a rainbow.
> Puppies are the joy at one end.
> Old dogs are the treasure at the other.
> Carolyn Alexander
>
> ----- Original Message -----
> From: "Rik James" <d28rik@xxxxxxx>
> To: <bookshare-discuss@xxxxxxxxxxxxx>
> Sent: Thursday, May 04, 2006 7:56 PM
> Subject: [bookshare-discuss] Any tips for scanning pages with photo
> images?
>
>
> Any tips for scanning pages with photo images?
>
> When I scan pages that have photo images, I get lots and lots of H^^ J^^
> and
> so on like that. The text will be in the middle of sentences and or off
> to
> itself, depending. So that means lots of editing, if indeed I decide it
> is
> worth continuing. I try to scan a lot of CD booklets and things with
> small
> distances between margins, and of course these are problematic, too.
>
> I have been meaning to ask to see if anyone has a particular technique or
> setting adjustment that they have used to improve the scanning.
>
> I imagine a certain amount is unavoidable. But whatever there might be to
> reduce it, well, I figure it can't hurt to ask, right?
>
> I'm using OpenBook 7.02.
>
> Thanks.
> Rik
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