Delivering images ready for press might make sense for some institutions. However as a library, we rarely create our images for publications. We primarily create them to share with our patrons over the web. But at the same time, if one of our patrons requests a high resolution copy of something they see on our web site, we want to be able to provide it for them without having to rescan the original photograph. Having a master file also allows us to make additional derivatives for future needs like PowerPoint presentations, and at some point as technology improves we may be able to upgrade the images that we are presenting on the web to a higher resolution.
Julie At 07:48 PM 11/23/2006, Howard Brainen wrote: >I agree with developing a workflow that delivers images ready for specific >output. But I recommend that the output workflow be considered as >derivative file production, not capture. > >There are a number of reasons for capturing master files at high resolution >rather than trying to "fly through a production cycle....." and ending up >with small jpegs only. Here are a few: > >-Less handling of materials; >-Less labor (scanning takes much more time than derivative file production, >which can be automated); >-Downsizing files, or reducing bit depth, results in higher quality than >going in the other direction. > >This is often called: "scan once, use many." > >Systems (scanners, computers, software)have gotten so fast and inexpensive >that it is now practical,in most cases,to digitize at preservation quality. >This better, faster, cheaper paradigm was predicted by Moore's Law and it >continues today. It also applies to storage, where hard drives have more >capacity, are smaller and cheaper. This is why mass digitization projects >like Google's are happening now. > >Just my fifty cents worth.... > >Howard Brainen >Digital Imaging Consultant >TWO CAT DIGITAL >14719 Catalina Street >San Leandro, CA 94577 >510-940-2670 ext 201 >FAX 510-940-2632 >www.twocatdigital.com >blog: www.digitalenabler.blogspot.com > > > > > > >-----Original Message----- >From: mcn-l-bounces at mcn.edu [mailto:mcn-l-bounces at mcn.edu] On Behalf Of >Jeff >Evans >Sent: Wednesday, November 22, 2006 4:31 PM >To: Museum Computer Network Listserv >Subject: Re: [MCN-L] Clarifying Interpolating vs. Scaling > >Hi - > >A lot of good info has gone out today regarding this. >A good consideration is to deliver images ready for press. >This will push you toward files that are 8000 pixels for a full page >illustration. Maybe 6000 for a half page image. Mid range cameras >and scanners may have trouble creating images that large. Also you >*may* want to capture your files as 16-bit RGB tif, 600 dpi. >Everything for press gets delivered at 300 dpi CMYK 8-bit however. >Master files are great but- I am also always a fan of capturing files >for a certain use. A photo project (such as Julie's) may be printed >in duotone for example, so the workflow should be pointed at that. >Or a web project can fly thru a production cycle if jpegs are all >that are needed. > >JEFF > >Jeffrey Evans >Digital Imaging Specialist >Princeton University Art Museum >609.258.8579 > > > > > Just to be clear, interpolating is not the same as scaling. > > Wanting a 5x7 photo or document to be 200% its size when scanning > > is scaling. Having a completed 5x7 scan at 300ppi and then making > > the file larger is interpolating. > > > > Mike Rippy > > IMA Photographer > > mrippy at ima.museum > > (317)920-2662 ext.191 > > > > IMA > > 4000 Michigan Road > > Indianapolis, IN, USA 46208-3326 > > www.ima.museum > > _______________________________________________ > > You are currently subscribed to mcn-l, the listserv of the Museum > > Computer Network (http://www.mcn.edu) > > > > To post to this list, send messages to: mcn-l at mcn.edu > > > > To unsubscribe or change mcn-l delivery options visit: > > http://toronto.mediatrope.com/mailman/listinfo/mcn-l > >_______________________________________________ >You are currently subscribed to mcn-l, the listserv of the Museum Computer >Network (http://www.mcn.edu) > >To post to this list, send messages to: mcn-l at mcn.edu > >To unsubscribe or change mcn-l delivery options visit: >http://toronto.mediatrope.com/mailman/listinfo/mcn-l > > >_______________________________________________ >You are currently subscribed to mcn-l, the listserv of the Museum Computer >Network (http://www.mcn.edu) > >To post to this list, send messages to: mcn-l at mcn.edu > >To unsubscribe or change mcn-l delivery options visit: >http://toronto.mediatrope.com/mailman/listinfo/mcn-l Julie Grob Digital Projects and Instruction Librarian Special Collections 114 University Libraries University of Houston Houston, TX 77204-2000 (713) 743-9744 jgrob at uh.edu
