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Array Dimensions and WRITE_GIF [message #10642]

Fri, 26 December 1997 00:00

Burkhard Prause
Messages: 6
Registered: February 1997

Junior Member

Hi everybody,

a question from an occasional user:

I thought I'd use IDL to reformat several hundred tiff files into gifs.
So TIFF_READ reads every tiff image into a three dimensional array, of
dimension (3,*,*).

WRITE_GIF then gives me the error message:Must be a byte matrix.

This happens when I use my own code, the JHU tif2gif.pro, or line by
line. Since I want to process hundreds of these, using gifscreen is out
of the question, though it works for single images.

Why this is happening, I don't know - it seems to work for other people,
since the nice folks at JHU put their code out there. I'd be satisfied
to simply truncate the first dimension and write just a (1,*,*) array
into gif, but it will not accept that either.

How do I extract a truly two dimensional array from a three dimensional
one, if the "first" dimension is the one to be eliminated?

I'll be happy for any insight into this problem.
--
************************************************************ ********************
BURKHARD A. PRAUSE
DEPARTMENT OF PHYSICS
UNIVERSITY OF NOTRE DAME
NOTRE DAME, IN 46556
bprause@campra.phys.nd.edu
(219) 631-4088
Fax: (219) 6315952
************************************************************ ********************

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[Message index]

		Array Dimensions and WRITE_GIF By: Burkhard Prause on Fri, 26 December 1997 00:00
		Re: array dimensions By: wmconnolley on Mon, 09 April 2001 02:40
		Re: array dimensions By: Martin Schultz on Mon, 09 April 2001 01:16
		Re: array dimensions By: Paul van Delst on Mon, 09 April 2001 07:56
		Re: array dimensions By: davidf on Sun, 08 April 2001 20:13
		Re: array dimensions By: James Kuyper on Mon, 09 April 2001 08:20
		Re: array dimensions By: Craig Markwardt on Mon, 09 April 2001 06:23
		Re: array dimensions By: Richard French on Sun, 08 April 2001 19:42
		Re: array dimensions By: Paul van Delst on Mon, 09 April 2001 07:52
		Re: array dimensions By: davidf on Sun, 08 April 2001 18:29
		Re: array dimensions By: web on Sun, 08 April 2001 17:55
		Re: array dimensions By: davidf on Sun, 08 April 2001 09:11
		Re: array dimensions By: francesco.spada on Sun, 08 April 2001 08:38
		Re: array dimensions By: Craig Markwardt on Sun, 08 April 2001 07:33
		Re: array dimensions By: davidf on Sun, 08 April 2001 07:09
		Re: array dimensions By: Craig Markwardt on Sun, 08 April 2001 06:37
		Re: array dimensions By: davidf on Sat, 07 April 2001 18:40
		Re: array dimensions By: davidf on Sat, 07 April 2001 18:38
		Re: array dimensions By: Richard French on Sat, 07 April 2001 16:41
		Re: array dimensions By: Alex Schuster on Mon, 09 April 2001 08:28
		Re: array dimensions By: davidf on Sat, 07 April 2001 07:03

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