need the use of a scanner with sheet feeder (near Seattle)

From: Tothwolf <tothwolf_at_concentric.net>
Date: Mon Apr 8 17:44:59 2002

On Mon, 8 Apr 2002, Douglas H. Quebbeman wrote:

> Looking at it another way, DjVu condenses any image fed into it
> into a mathemetical expression that, when evaluated, yields
> as its result, the image of the original document.
>
> So, it's nothing like OCR. If the original image were a page full
> of little apples, the program will decide which apple is the best
> one, and when it reconstitutes the original image, will put as
> many copies of the one apple on the page as the original had. If
> there are subtle differences between the apples that the eye
> won't readily see, then the reconstituted image won't have those
> subtle differences.
>
> It goes beyond this too; it separates the text and calls that
> foreground, and everything that's not text is background. The
> background is compressed with a different family of wavelets
> than is used for the foreground.

Nice. This is exactly what I had been looking for. Now if I can only come
up with the funds to buy the system I wanted to use for processing large
volumes of documents :)

-Toth
Received on Mon Apr 08 2002 - 17:44:59 BST