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Date Posted: 06:52:08 06/07/00 Wed
Author: Dave Evans
Subject: Re: Maximum Compression?
In reply to: Homer 's message, "Maximum Compression?" on 15:28:58 06/05/00 Mon

For the last 14 years, I've been involved with document Image Processing and in all that time, the TIF format has been the most popular for storing images. There are, I think, two reasons for this:
1.) It's a well-supported and open format. This is important to people who know they will be upgrading their systems at some stage and a proprietary format makes this a very difficult process.
2.) It's a non-lossy format. I note that you are prepared to accept a lossy format and for that I would suggest .jpg - again, it's well supported, fairly fast and can be configured to be very compressive. The greater majority of systems I've encountered MUST keep the image as a non-lossy format as part of the business process.

As a guide, G4 TIFF will reduce a letter-sized page scanned at 200 d.p.i to around 30-50kb (depending on its complexity). Increasing the resolution to 300d.p.i - probably the second most common resolution - will not increase the size of the image significantly.

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