| Re: read gif files in IDL [message #3023] |
Thu, 27 October 1994 09:49 |
soc
Messages: 12
Registered: October 1994
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Junior Member |
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Qiuwen Wu (qww@cuphy3.columbia.edu) wrote:
: It seems to me that READ_GIF in IDL can only read in files in GIF87 format,
: but not in GIF89 format, Does any one else also notice it? I'm using IDL
: 3.6 on OpenVMS/Alpha.
: Qiuwen Wu
: Columbia University
Hi - yup - I have the same problem with IDL 3.6. IDL writes 87a format
too.
In general I found IDL on the alpha prettyy bad (one of the few things
though!!).
Sorry to be the confirmer of bad news!!
Rob
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| Re: read gif files in IDL [message #3029 is a reply to message #3023] |
Thu, 27 October 1994 06:41  |
nowicki
Messages: 11
Registered: May 1993
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Junior Member |
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In article <38m7c8$mpn@sol.ctr.columbia.edu>, qww@cuphy3.columbia.edu (Qiuwen Wu) writes:
> It seems to me that READ_GIF in IDL can only read in files in GIF87 format,
> but not in GIF89 format, Does any one else also notice it? I'm using IDL
> 3.6 on OpenVMS/Alpha.
>
> Qiuwen Wu
> Columbia University
>
Using an AXP, OVMS 1.5 and IDL 3.6, READ_GIF works fine for me when
reading GIF89a files with the command:
IDL> read_gif,'gdn1:[images.gif]triton.gif',image,r,g,b
where triton.gif is a GIF89a file, (verified using DUMP). Have you
tried imaging the file using XV or some other utility?
-Greg
/* Greg Nowicki | Mail Stop 401A | LIDAR Applications Group */
/* NASA Langley Research Center | Hampton, Virginia 23681-0001 */
/* Voice: (804) 864-2713 | FAX: (804) 864-7790 */
/* nowicki@tardis.larc.nasa.gov | My opinions and mine alone . . . */
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