Xref: utzoo comp.lang.c:38638 comp.sources.wanted:16401 Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sdd.hp.com!spool.mu.edu!munnari.oz.au!diemen!geo!mgb From: mgb@geo.geol.utas.edu.au (Michael G. Brown) Newsgroups: comp.lang.c,comp.sources.wanted Subject: Wanted: Contouring algorithm Summary: I need a good image contouring algorithm in C Keywords: C contouring algorithm image-processing wanted Message-ID: Date: 24 Apr 91 05:05:53 GMT Article-I.D.: geo.mgb.672469553 Sender: news@diemen.utas.edu.au Followup-To: comp.lang.c Distribution: comp Lines: 29 Greetings and salutations. THE PROJECT: I am working on an image processing package, currently running on a SparcStation 1 under SunOS 4.0. The package currently uses X windows as a display medium, but we are trying to make the entire package independent of any operating or graphics system. THE DATA STRUCTURE: Our images are stored in a custom format, which we access through a memory paging system on an individual pixel, or complete row basis. Each pixel can represent either an integer or floating point quantity. THE PROBLEM: We need to have a method for presenting the images as contour maps of various intensity levels. Rather than re-inventing the wheel, I thought someone may have developed the required algorithms in the past. Ifyou have done this, I would greatly appreciate it if you could mail me your code, or any references you used or anything! I do not expect to be able to use the code straight as it comes, but a little modification will be better than starting from scratch. We do require the package to generate fairly smooth contours. If you can help, I would be most appreciative. -- Michael G. Brown | mgb@geo.geol.utas.edu.au | "And because, in all the Department of Geography | mgb@gnu.ai.mit.edu | Galaxy, they had found University of Tasmania | | nothing more precious than GPO Box 252C, Hobart | Live and Direct! | mind, they encouraged its