Re: Images in Mathematica
- To: mathgroup at smc.vnet.net
- Subject: [mg14286] Re: Images in Mathematica
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Tue, 13 Oct 1998 01:21:08 -0400
- Organization: University of Western Australia
- References: <6vhj42$jfb@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
JOHN C ERB wrote: > I would like to be able to import a scanned image (e.g., medical x-ray > film) into Mathematica, > and be able to ascertain the x and y coordinates of an object on that > image (given that I have > an x-y scale already on the image). > > Is there a package already available for doing this? This capability is built-in, at least manually: [1] Copy the graphic to the clipboard and simply paste it into Mathematica. [2] If you want portability of the resulting Notebook, convert the graphic to a Bitmap as this will then display on all platforms [3] Select the graphic by clicking on it. [4] Select (multiple) points on the graphic by clicking the mouse whilst holding down the command-key on Mac, ctrl on Windows and Unix. [5] Copy these points to the clipboard (using Edit | Copy) and then paste the result into a new input cell. You should also digitize the scale off the image. A search of comp.soft-sys.math.mathematica using Deja news http://www.dejanews.com/home_ps.shtml for digitiz* returned a number of postings related to this topic so you might want to follow up on these threads. Incidentally, there are some good Image Processing courses out there: have a look at http://eeunix.ee.usm.maine.edu/ee/faculty/mjkcc/docs/ele489/489.html Cheers, Paul ____________________________________________________________________ Paul Abbott Phone: +61-8-9380-2734 Department of Physics Fax: +61-8-9380-1014 The University of Western Australia Nedlands WA 6907 mailto:paul at physics.uwa.edu.au AUSTRALIA http://www.physics.uwa.edu.au/~paul God IS a weakly left-handed dice player ____________________________________________________________________