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Re: IDL 6.1 released [message #40393]

Thu, 05 August 2004 22:10

mchinand
Messages: 66
Registered: September 1996

Member

In article <10h5b6li1j61efe@corp.supernews.com>,
RSI Information <info@rsinc.com> wrote:
> RSI is pleased to announce the release of IDL 6.1.
>
>
>
> This new version will be available for download from the RSI Web site after
> maintenance updates have completed shipping over the next couple of weeks.
>
>
>
> Some of the new features in IDL 6.1 include:
>
>
>
> * Support for the JPEG 2000 compression format, enabling more efficient
> storage and handling of large images.

Has GIF reading and writing as well as LZW compression for TIFF files been
restored since the Unisys patents have expired? I didn't see any mention
of it after a quick look at the What's New in 6.1 pdf but was under the
impression that this functionality would be added in 6.1 according to:

http://www.rsinc.com/services/techtip.asp?ttid=3543

While I don't plan to use these file formats for creating new files, I
have received TIFF image files w/ LZW compression from collaborators and
it would be nice to be able to read them directly into IDL w/o having to
convert them with another program first.

Thanks,

--Mike Chinander

--
Michael Chinander
m-chinander@uchicago.edu
Department of Radiology
University of Chicago

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Re: IDL 6.1 released [message #40500 is a reply to message #40393]

Mon, 09 August 2004 12:25

Liam E. Gumley
Messages: 378
Registered: January 2000

Senior Member

Mike Chinander wrote:
> Has GIF reading and writing as well as LZW compression for TIFF files been
> restored since the Unisys patents have expired? I didn't see any mention
> of it after a quick look at the What's New in 6.1 pdf but was under the
> impression that this functionality would be added in 6.1 according to:
>
> http://www.rsinc.com/services/techtip.asp?ttid=3543
>
> While I don't plan to use these file formats for creating new files, I
> have received TIFF image files w/ LZW compression from collaborators and
> it would be nice to be able to read them directly into IDL w/o having to
> convert them with another program first.

If you have an IDL maintenance agreement in place, I believe RSI will
generate a new license file for you which activates LZW compression for
GIF and TIFF. We just did this for our IDL 5.5 and 6.0 installations. A
permission slip from Unisys is no longer required.

Cheers,
Liam.
Practical IDL Programming
http://www.gumley.com/

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