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From:
"Roach, Bill J." <[log in to unmask]>
Reply To:
Records Management Program <[log in to unmask]>
Date:
Thu, 10 Feb 2005 22:51:10 -0600
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>>On the issue of TIFF vs. JPEG - this comes up often in litigation support.
The debate centers on many of the same issues, primarily the cost-benefit of
consistent color rendition vs. all of the detriment created by large file
sizes.<<

Sorry for the abrupt suggestion a bit earlier, but here is where a format
like DjVu really shines.  Color TIFF files are very large but can be
processed to embed text for full document search.  JPEG provides good
quality images but can be very lossey and does not support embedded text.
PDF can provide a mix of the two capabilities but can also be very large.
Large files require more storage and limit access due to bandwidth
requirements.  And because of the way the software accesses the files, they
can bring even the largest desktops to their knees.

As an alternative, DjVu files are very compact and provide outstanding
color.  Since they have a line art/text layer, they can also contain
embedded text.  Some of our examples include large format color engineering
documents (693MB TIF to 1.7MB DjVu), engineering reports (335MB TIF to 400K
DjVu, aerial photograph (385MB TIF to 6.7MB DjVu) and signed 2 page color
bill from our past legislative session (6.1MB PDF, 1.6MB TIF, 43K DjVu).

We feel that the combination of very small file size and high quality is a
tough combination to beat.

Bill Roach, CRM
Enterprise EDMS Coordinator
State of North Dakota
ITD/Records Management
701-328-3589




-----Original Message-----
From: Records Management Program [mailto:[log in to unmask]] On Behalf
Of Bil Kellermann
Sent: Thursday, February 10, 2005 3:18 PM
To: [log in to unmask]
Subject: Re: Using TIFF Compressed or JPEG for color images

I am relatively new to the list and so far have relegated myself to the
status of "lurker."  By way of introduction, I am a lawyer for a software
company that develops software for lawyers.  I have developed some
experience and expertise with electronic evidence discovery.  I am
interested in the extension of the problems found in that arena as they
track back up the food chain to records management.

On the issue of TIFF vs. JPEG - this comes up often in litigation support.
The debate centers on many of the same issues, primarily the cost-benefit of
consistent color rendition vs. all of the detriment created by large file
sizes.  My rules of thumb are fairly simple:
first, if precise color rendition is required for some current or future
substantive evidentiary value (such as in a trade-dress dispute) then using
a format, such as TIFF, that will provide exact color rendition is required.
Second, if precise color rendition has some lasting historical or archival
value to the organization, that value should be analyzed in light of the
cost of maintaining the format.

William Kellermann, Esq.
Director, Corporate Legal Systems
Summation Legal Technologies, Inc.
  A CT Corporation Company
www.summation.com



-----Original Message-----
From: Records Management Program [mailto:[log in to unmask]] On Behalf
Of Shirley Calvert
Sent: Thursday, February 10, 2005 10:57 AM
To: [log in to unmask]
Subject: Using TIFF Compressed or JPEG for color images


We have certain records (newsletters, for example) that contain color
pictures that we must image in color.  The pictures lose a lot of detail if
we image them on a black and white scanner.  We have a Canon DR-9080C color
scanner.  We save our black and white images in TIFF compressed, but saving
a color image in that format takes up a considerable amount of space.  JPEG
results in significantly smaller files but from what I have been told is a
lossy file type so that what you image and what you save are not equal.  We
can, however, choose a quality level of 80 or
higher to make the image less lossy.   We need to know which one of
these two options would be the best for us to use or are there other options
available to us?

Thanks to all of you who have responded to my requests recently.  I
appreciate the help very much.

Shirley H. Calvert
Administrative Services Manager
Hoosier Energy REC, Inc.
P.O. Box 908
Bloomington, IN 47402-0908
812-876-0306
812-876-3476 (Fax)
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