Dithering is 'A way of simulating gray tones or colors by grouping dots so they can be merged into a intermediate colors or tones.' (according to HP's glossary) Ariel has settings that allow the scanner to scan differently to produce a better image on x-rays, chromatography, etc., if the scanner has the dithering capability. This often gets used in conjunction with making the image brightness a little lighter. This kind of scanning doesn't create the large file size of using gray scale and it actually looks better to me than gray scale. (We typically use dither pattern 1 and click the brightness back 2 notches.) Some of the HP printers don't allow changing brightness and contrast, at least not unless you are using gray scale or color.
--Tom ***** Thomas B. Craig, MSLS Director of Library Services Watson W. Wise Medical Research Library University of Texas Health Science Center at Tyler phone: 903-877-2864 fax: 903-877-2221 email: thomas.cr...@uthct.edu ***** Opinions stated are those of the sender and are not official statements of the University of Texas Health Science Center at Tyler. Please do not share or forward without permission. Please inform the sender of misdirected messages. -----Original Message----- From: arie-l-boun...@mailman1.u.washington.edu [mailto:arie-l-boun...@mailman1.u.washington.edu] On Behalf Of James Martin Cummings Sent: Thursday, October 15, 2009 10:26 AM To: 'Discussion of the Ariel Document Transmission System' Subject: RE: [ARIE-L] HP ScanJet 5590 ??? We are looking for scanners now. What is full dithering capability? Jim Cummings J. W. England Library/ILL (DOCline PAUPPS, OCLC PCP) Ariel 208.7.150.34 University of the Sciences in Philadelphia Box 119, 600 South 43rd Street Philadelphia, PA, USA 19104-4495 Philadelphia, PA 19104 Telephone: 215-596-8969 Fax: 215-596-8760 > -----Original Message----- > From: arie-l-boun...@mailman1.u.washington.edu > [mailto:arie-l-boun...@mailman1.u.washington.edu] On Behalf > Of Craig, Tom > Sent: Thursday, October 15, 2009 11:14 AM > To: Discussion of the Ariel Document Transmission System > Subject: RE: [ARIE-L] HP ScanJet 5590 ??? > > Does the fi-4340 have full dithering capability from within > Ariel? Did you use this scanner with an earlier versions of Ariel? > > --Tom > ***** > Thomas B. Craig, MSLS > Director of Library Services > Watson W. Wise Medical Research Library > University of Texas Health Science Center at Tyler > phone: 903-877-2864 > fax: 903-877-2221 > email: thomas.cr...@uthct.edu > ***** > Opinions stated are those of the sender and are not official > statements of the University of Texas Health Science Center > at Tyler. Please do not share or forward without permission. > Please inform the sender of misdirected messages. > > > _______________________________________________ > ARIE-L mailing list > Mail the list at ARIE-L@u.washington.edu Unsubscribe at > http://www.arie-l.org#subscribers Archive at > http://www.mail-archive.com/arie-l@u.washington.edu/ > > > > > > _______________________________________________ ARIE-L mailing list Mail the list at ARIE-L@u.washington.edu Unsubscribe at http://www.arie-l.org#subscribers Archive at http://www.mail-archive.com/arie-l@u.washington.edu/ _______________________________________________ ARIE-L mailing list Mail the list at ARIE-L@u.washington.edu Unsubscribe at http://www.arie-l.org#subscribers Archive at http://www.mail-archive.com/arie-l@u.washington.edu/
