Date : Thu, 05 Jul 2001 08:27:54 +0200
From : "Mark Usher" <mu.list@...>
Subject: Magazine test scans - Update
I have added an example scan of what jpeg compression does to a picture.
http://members.magnet.at/marku/bbc/autest.htm
Also considering the amount of visits to the page I am rather dissapointed
at the amount of feedback so far. Please, I need everyones input on this.
[in reply to Robert Schmidt]
>The danger with proprietary technology like this is of course the
>possibility of its disappearance from the market. If DjVu never takes
>off, we're stuck with a plug-in that may not work in future browsers.
Yes, I would agree 100% there. There are also programs and plugins
(photoshop) provided to convert the images back to say .tif format which is
a big plus.
Recently ancestry.com (the 3rd biggest subscribtion site on the web) has
also used this technolog y to save the scans of the US Censuses from
1790-1920 ! Imagine how many images that is going to be. So there are some
large projects that use this technology, hence my willingness to even test
it out.
>- the possibility to export to more standard formats (doesn't seem to be
>available in the viewer?).
In the viewer not, but there is a program you can download to either export
them as bitmaps or a plugin for photoshop which will enable saving to many,
many formats.
> If a resulting PDF file will maintain the
>same level of quality as well as whatever meta-information we decide to
>add, the small size of DjVu files may be worth the risk for the time
>being.
I don't know if a djvu file could be embedded in a pdf file.
>A bigger hurdle may be that the free DjVu-production program is limited
>to 1-page documents. OCR and keywords for searching are only available
>commercially ($299). Those of us wanting to take serious part in this
>should probably shell out for the complete package - do you own this
>yet, Mark? But, hey, this is the same problem as with Acrobat.
No I don't own it, I don't own Acrobat either.
What I was hoping is that we could get them to sponsor the project, which
would be alot more difficult persuading Adobe to do. First I wanted to guage
reaction to the images and their quality.
[in reply to Wouter Scholten]
>Could you make screenshots of some pieces? (bmp/tiff).
The original files (with LZW compression) are :-
cover.tiff - 6.11MB
page62 - 1.83MB
Mark Usher
BBC Documentation Project
http://members.magnet.at/bbc/marku