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Re: Help in Image Analysis [message #47720 is a reply to message #47615]

Thu, 23 February 2006 01:04

Peter Clinch
Messages: 98
Registered: April 1996

Member

Bharani wrote:
> I have a File with extension .RKD extesion..the Size of this file is
> Approximately 10MB.. this is the Data File that i have with me ... and
> i want to know how i can read this data File into IDL and then Proceed
> further....

Find out the format of the data points (is it bytes, unsigned 2 byte
integers, IEEE floating point or whatever) and allocate an array big
enough for the file (i.e., if it's got 10 million byte size data points
you'll want data=BYTARR(10000000), if it's 5 million two-byte signed
integers you'll want data=INTARR(5000000) and so on).

Then use OPENR to open the file for reading and use READU to put the
contents of the file in the array (don't forget to CLOSE the data file).
Once it's there you have your data in IDL and can start exploring.
You may want to use REFORM to make the 1D array you have to start with
either 2 or 3 D as appropriate.

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net p.j.clinch@dundee.ac.uk http://www.dundee.ac.uk/~pjclinch/

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[Message index]

		Help in Image Analysis By: Bharani on Tue, 21 February 2006 02:33
		Re: Help in Image Analysis By: Peter Clinch on Thu, 23 February 2006 01:04
		Re: Help in Image Analysis By: Bharani on Thu, 02 March 2006 09:02
		Re: Help in Image Analysis By: Bharani on Wed, 22 February 2006 08:53
		Re: Help in Image Analysis By: Bharani on Wed, 22 February 2006 08:53
		Re: Help in Image Analysis By: btt on Wed, 22 February 2006 08:29
		Re: Help in Image Analysis By: Peter Clinch on Wed, 22 February 2006 08:10
		Re: Help in Image Analysis By: Bharani on Wed, 22 February 2006 07:47
		Re: Help in Image Analysis By: Peter Clinch on Wed, 22 February 2006 06:06
		Re: Help in Image Analysis By: David Fanning on Thu, 02 March 2006 10:30
		Re: Help in Image Analysis By: David Fanning on Thu, 02 March 2006 10:05

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