comp.lang.idl-pvwave archive: archive » Importing Binary Images

Home » Public Forums » archive » Importing Binary Images

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Importing Binary Images [message #29002 is a reply to message #28873]

Thu, 24 January 2002 09:06

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

rschick@neaq.org (rob schick) writes:
> Ok - thanks to all for the replies. The program creating the image, is
> in row-major. I created the image on an NT machine, and am using IDL
> on a linux machine (intel processor).
>
> I tried
> IDL> openr, 1, 'gom15dd.dat', /swap_if_little_endian
> IDL> ms = intarr(2041,1561)
> IDL> readu, 1, ms
> IDL> tvscl, ms
>
> and this looks better. I don't think it's quite correct, so my
> questions as related to the suggestions are:
>
> If my image is indeed not byte, do I do something different, e.g.
> -rw-r--r-- 1 robs robs 12744004 Jan 17 14:38 gom15dd.dat
> that value divided by (1561x2041) = 4 ?

Umm, BYTE = 1 byte, INT = 2 bytes, LONG = 4 bytes (ignoring
distinction between unsigned and signed). So, looks like you want a
LONARR, not an INTARR.

Good luck,
Craig

--
------------------------------------------------------------ --------------
Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
------------------------------------------------------------ --------------

Report message to a moderator

[Message index]

		Importing Binary Images By: rschick on Fri, 18 January 2002 06:38
		Re: Importing Binary Images By: Craig Markwardt on Fri, 18 January 2002 10:53
		Re: Importing Binary Images By: Martin Downing on Fri, 18 January 2002 09:05
		Re: Importing Binary Images By: Med Bennett on Fri, 18 January 2002 08:51
		Re: Importing Binary Images By: Nigel Wade on Thu, 24 January 2002 09:03
		Re: Importing Binary Images By: Craig Markwardt on Thu, 24 January 2002 09:06
		Re: Importing Binary Images By: Martin Downing on Tue, 29 January 2002 10:09
		Re: Importing Binary Images By: rschick on Thu, 24 January 2002 07:56

Previous Topic:	In case someone has trouble including export.h
Next Topic:	Question again :)

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 19:49:00 PDT 2025

Total time taken to generate the page: 3.92269 seconds