Xref: utzoo comp.graphics:2403 comp.sys.ibm.pc:15169 Path: utzoo!mnetor!uunet!husc6!uwvax!umn-d-ub!msummers From: msummers@umn-d-ub.D.UMN.EDU (Mark Summers) Newsgroups: comp.graphics,comp.sys.ibm.pc Subject: light pen interfaces Message-ID: <314@umn-d-ub.D.UMN.EDU> Date: 2 May 88 15:43:14 GMT Organization: U. of Minnesota-Duluth, Computer Center Lines: 4 Keywords: interfaces, light pen I want to find software that will allow a user to measure distances on a monitor that is displaying output from a television camera on a microscope. The objects to be measured are microvessels.