Message-Id: <mailto:199503161342.HAA13278@library.wustl.edu> Date: Thu, 16 Mar 1995 08:34:06 -0500 From: James W Cerny <mailto:jwc@HOPPER.UNH.EDU> Subject: controlling image quality for on-screen viewing - 2 questions To: Multiple recipients of list IMAGELIB
I suppose there are several Net places where these 2 questions might be asked, but I trust the judgment of IMAGELIB folks (flattery, flattery) more than some other forums.1. Have people had trouble with Kodak Photo CD images looking underexposed? I just got my first roll processed. Took them myself (outdoor shots on our campus). Since I am highly amateur I thought it probably was me. But I compared experience with someone else on our campus who works with the pros in our media lab and they are having the exact same problem, even with existing photos that are being added to Photo CDs. I took my film to WalMart, but I'm not sure what lab processed it (2 weeks turnaround). These other folks appear to be using a different lab since they are going elsewhere and getting 2-3 day turnaround. Comments? BTW, I can laregly compensate for the underexposed look by tweaking in Adobe PhotoShop, but wish I didn't have to.
2. Does everyone suffer from the problem of designing an image for some imaginary "average" monitor, given that the desktop display environments vary so much? When I prepare images for our CWIS Web pages, I like to do the procesing on a Macintosh. But when I have them so that they look just right on the Mac (in terms of trading off image quality for size), they look much too dark when viewed on my DEC OSF/1 Unix workstation, and somewhat too dark when viewed on a Dell PC Windows system -- in each case using a current version of Netscape for the viewing. There is even a noticible difference between my Unix workstation and the person in the next office who is using the same hardware and software (his always looks darker ... which I suppose is due to the way our X-environments or applications are affecting our respective color mapping). Again, any comments on coming to grips with this seeming fact of life? What I've been doing is to deliberately over-brighten the images on the Mac.
Jim Cerny, Computing and Information Services, Univ.N.H. mailto:jim.cerny@unh.edu