Slideshow file compression or take another path?

Archived from groups: rec.photo.digital (More info?)

I would resize the pictures to whatever size is required for the
presentation (TV or PC). Use free PowerToys from MS. Select all pictures,
right click and select predefined or your unique size. It goes by itself. Do
it into Temp directory, burn them and then delete them. Of course, keep the
originals! The files will be very small (~50k/picture), so you could fit all
your work onto one DVD.

Jan


"Habu" <OkiHabu@gmail.com> wrote in message
news:1127950819.462394.246780@o13g2000cwo.googlegroups.com...
> It's taken me months to come to this point. Instead of jumping in with
> questions, I did some research only to find that I had opened up
> Pandora's box...again.
>
> My situation: I am scanning a historical collection of documents into
> jpeg files and creating a slideshow. The enormity of it all will
> require many boxes of CD's.
>
> The slideshows work very well and the documents are readable but before
> I go too far...should I be looking at a different method.
>
> The text is the only one of it's kind and I want to share it with
> fellow enthusiasts and historians.
>
> I WELCOME all thoughts, questions and answers. I am a historian and not
> very technically prone but I will do whatever is necessary to get this
> done right.
>
> Sincerely,
> Steven
> Okinawa, Japan
>

Archived from groups: rec.photo.digital (More info?)

"Bryan Olson" <fakeaddress@nowhere.org> wrote in message
news:IVG_e.980$lc1.400@newssvr21.news.prodigy.com...
> Habu wrote:
> > [...] I am scanning a historical collection of documents into
> > jpeg files and creating a slideshow. The enormity of it all will
> > require many boxes of CD's.
> [...]
> > The text is the only one of it's kind and I want to share it with
> > fellow enthusiasts and historians.
> >
> > I WELCOME all thoughts, questions and answers. I am a historian and not
> > very technically prone but I will do whatever is necessary to get this
> > done right.
>
> First question: What do you mean by "the text"? In some cases,
> historians are interested in the look of the original. In most
> cases, what is important is to make text readable.
>
> JPEG is for continuous-tone images. It does not handle text well.
>
> By the time you require "many boxes of CD's", you either need an
> automated CD production system, or a different method of distribution.
> Hard-disk is usually the best storage medium for dozens of gigabytes
> and up. The Web is usually the right way to distribute.
>
> Google has a project to scan/photograph every page of every book that
> they're allowed to, and make the content publicly available. Perhaps
> they would be interested in your collection.
>
>
> --
> --Bryan

Also if you're talking about just text maybe you could scan in 16 colours or
similar. I seem to remember this really does reduce the file size but you
may have to save as something other than JPEG.

Burning to DVD instead would use 6 times less CDs at single layer or 12
times less CDs at double layer.

Alex

Archived from groups: rec.photo.digital (More info?)

Bryan Olson wrote:

> Habu wrote:
> > [...] I am scanning a historical collection of documents into
> > jpeg files and creating a slideshow. The enormity of it all will
> > require many boxes of CD's.
> [...]
> > The text is the only one of it's kind and I want to share it with
> > fellow enthusiasts and historians.
> >
> > I WELCOME all thoughts, questions and answers. I am a historian and not
> > very technically prone but I will do whatever is necessary to get this
> > done right.
>
> First question: What do you mean by "the text"? In some cases,
> historians are interested in the look of the original. In most
> cases, what is important is to make text readable.

Given where he is posting from and an historical document it is likely
that the documents are handwritten kanji and hirogana. The brush stroke
detail may well require grey scale imaging to maintain legibility.

> JPEG is for continuous-tone images. It does not handle text well.

It doesn't handle it as badly as is generally believed. You can save
line artwork in JPEG format using the right settings and achieve good
results both in compression and quality. PNG usually beats it though.
>
> By the time you require "many boxes of CD's", you either need an
> automated CD production system, or a different method of distribution.

DVD might be a better choice given the volume of data.

There are dedicated algorithms for monochrome text images that acheive
very much higher compression than JPEG ever will. Places to look for
examples are on 1837.com (DjVu) and I think Ancestry.com uses JPEG
monochrome (nominal 25% setting). It is worth looking very carefully at
a range of options for compressing archive material to get the best size
quality trade off.

Regards,
Martin Brown

Archived from groups: rec.photo.digital (More info?)

I must say that the answer is YES, they should be very interesting to
you!
The "documents" are actually pages from the:

TOP SECRET
Commander Task Force Fifty-One
Commander Amphibious Forces
U.S. Pacific Fleet,
Operations Plan NO. A1-45

And

CONFIDENTIAL
United States Pacific Fleet and Pacific Ocean Areas
OKINAWA GUNTO
Second supplement to Okinawa Gunto Information
Bulletin Number 161-44
15 November 1944

Both are complete with handwritten notations and last minute changes.

Scanning the "documents" into a pdf format is possible but I am
interesed in the actually showing the original pages with
"redline" changes.
When I read the pages I get this tremendous inner emotion of what the
thought processes were being discussed
and who was there.

There are plenty of large maps also.

In my estimation thiese items are priceless but too damn important to
not share.