Alison,

Thanks for sending this information.  I've had several private responses so
far and will probably attempt to summarize for the list at some point.

Wayne 

> -----Original Message-----
> From: Alison Parks-Whitfield [mailto:[log in to unmask]] 
> Sent: Friday, June 09, 2006 2:18 PM
> To: [log in to unmask]
> Subject: Re: Image compression informal survey
> 
> Hi Wayne,
> 
> This is something we are wrestling with in my department at 
> Stanford as
> well.
> 
> JPEG 2000 is not supported by any browser, so web delivery 
> displays in JPEG
> format. JPEG is completely appropriate for continous tone 
> images, and I
> think it is a very good option for delivery of photographs, 
> illustrations,
> etc.
> 
> However, on one of my projects we are dealing with manuscript 
> texts. From my
> vantage point (I worked at Adobe for several years) there are 
> better file
> formats to display texts on the web. PNG and GIF tend to yield crisper
> edges, better overall quality and nice small files.
> 
> JPEG looks ok on manuscript texts, but the images are 
> generally darker,
> fuzzier and artifact laden.
> 
> Wayne, thank you for opening this up for discussion. I'm so 
> interested to
> hear what others have to say on the subject.
> 
> Best,
> 
> Alison
> ---------------
> 
> Alison Parks-Whitfield
> 
> Stanford University
> Aquifer Project Manager
> Parker Imaging QA Analyst
> 650-736-7761
> 
> 
> 
> Quoting "R. Wayne Shoaf" <[log in to unmask]>:
> 
> > At the University of Southern California we have 
> historically used MrSID
> > to
> > deliver large compressed images over the Web.  These are 
> normally stored
> > as
> > tiffs with SID renditions subsequently derived from the tiffs.
> >
> > We are considering switching to an alternative compression 
> because of
> > intermittent problems with the SIDs.  One technology we're 
> considering
> > switching to is jpeg-2000.
> >
> > We would be most appreciative if we could hear from others 
> out there with
> > regard to preferred compression formats for delivery of 
> still images on
> > the
> > Web -- particularly if you are using jpeg-2000.
> >
> > Thanks.
> >
> > Wayne
> > ----------------
> > R. Wayne Shoaf
> > Director
> > Information Delivery, Organization & Retrieval
> > Information Services Division
> > University of Southern California
> > University Village, UVI, Bldg. A
> > 3305 South Hoover Street
> > Los Angeles, CA 90007-3557
> > 213.740.4090
> > [log in to unmask]
> >
> >
> 
>