Thread Subject: Imwrite support for cmyk tiff output added when?

Subject: Imwrite support for cmyk tiff output added when?

From: Oliver Woodford

Date: 2 Oct, 2009 15:05:02

Message: 1 of 7

Hi

Can anyone tell me in which version of MATLAB support for saving cmyk tiff files was added?

Alternatively, can you help me narrow it down? I know:
It is in R2009b.
It is not in R2007b.

Can you add releases in between?

Thanks,
Oliver

Subject: Imwrite support for cmyk tiff output added when?

From: Oliver Woodford

Date: 2 Oct, 2009 15:19:01

Message: 2 of 7

"Oliver Woodford" wrote:
> Can anyone tell me in which version of MATLAB support for saving cmyk tiff files was added?

I have an additional plea to TheMathworks. Please please please can we have some means of finding stuff like this out from your website. In this case having the release notes for all versions easily available (I did look) would probably have sufficed. It's infuriating not knowing whether your code can be run by other people using older MATLAB versions.

Subject: Imwrite support for cmyk tiff output added when?

From: Steven Lord

Date: 2 Oct, 2009 16:18:49

Message: 3 of 7


"Oliver Woodford" <o.j.woodford.98@cantab.net> wrote in message
news:ha55l5$ham$1@fred.mathworks.com...
> "Oliver Woodford" wrote:
>> Can anyone tell me in which version of MATLAB support for saving cmyk
>> tiff files was added?

I don't know that information offhand, and a quick search through the
release notes for MATLAB didn't find it -- you should send this question to
Technical Support.

> I have an additional plea to TheMathworks. Please please please can we
> have some means of finding stuff like this out from your website. In this
> case having the release notes for all versions easily available (I did
> look) would probably have sufficed. It's infuriating not knowing whether
> your code can be run by other people using older MATLAB versions.

I believe the release notes for each product include the notes back a
certain number of releases or versions; for example, the MATLAB release
notes:

http://www.mathworks.com/access/helpdesk/help/techdoc/rn/rn_intro.html

go back to version 7.0 (release R14) and if you need earlier release notes,
you can go back to version 6.0 (release R12) using the link to the release
R13 with Service Pack 2 documentation at the bottom of the main
documentation page:

http://www.mathworks.com/access/helpdesk/help/helpdesk.html

Now that I think about it, depending on which function you're using, that
functionality may have started in Image Processing Toolbox and migrated into
MATLAB at some point. You might want to check the Release Notes for that
toolbox.

As for your additional plea -- you're not the first person to ask for this
type of information. I know there are some members of our development and
documentation staff thinking about compatibility considerations, including
how to make compatibility information available. There was a thread about
compatibility about a week ago -- if you have other suggestions for better
ways for us to handle those types of consideration, that thread would be a
good place to raise them to the attention of people like Scott Hirsch.

http://www.mathworks.com/matlabcentral/newsreader/view_thread/261465

--
Steve Lord
slord@mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ

Subject: Imwrite support for cmyk tiff output added when?

From: Oliver Woodford

Date: 2 Oct, 2009 16:39:03

Message: 4 of 7

"Steven Lord" wrote:
> I believe the release notes for each product include the notes back a
> certain number of releases or versions; for example, the MATLAB release
> notes:
> http://www.mathworks.com/access/helpdesk/help/techdoc/rn/rn_intro.html

Great! I've bookmarked that. Unfortunately (as you said) it doesn't mention what I'm looking for this time, but it will help sometimes, I'm sure.

Subject: Imwrite support for cmyk tiff output added when?

From: ImageAnalyst

Date: 2 Oct, 2009 16:57:09

Message: 5 of 7

On Oct 2, 11:05 am, "Oliver Woodford" <o.j.woodford...@cantab.net>
wrote:
> Hi
>
> Can anyone tell me in which version of MATLAB support for saving cmyk tiff files was added?
>
> Alternatively, can you help me narrow it down? I know:
> It is in R2009b.
> It is not in R2007b.
>
> Can you add releases in between?
>
> Thanks,
> Oliver

----------------------------------------------------------------------------------------------------------------------------
Some (but not all) of the Image Processing Toolbox changes over the
last 5 years are listed here on Steve Eddins Blog.
http://blogs.mathworks.com/steve/2009/07/30/five-years-of-image-processing-toolbox-changes/

Subject: Imwrite support for cmyk tiff output added when?

From: Steve Eddins

Date: 2 Oct, 2009 17:03:02

Message: 6 of 7

Oliver Woodford wrote:
> Hi
>
> Can anyone tell me in which version of MATLAB support for saving cmyk tiff files was added?
>
> Alternatively, can you help me narrow it down? I know:
> It is in R2009b.
> It is not in R2007b.
>
> Can you add releases in between?
>
> Thanks,
> Oliver

imwrite has supported writing CMYK TIFF files since MATLAB 6.5.1 (R13
SP1), which was released in August 2003. From what I can see, it looks
like we omitted that from the release notes for that release; I
apologize for the oversight.

MATLAB release notes are available online going back to R14 in 2004.

---
Steve Eddins
http://blogs.mathworks.com/steve/

Subject: Imwrite support for cmyk tiff output added when?

From: Oliver Woodford

Date: 5 Oct, 2009 22:20:03

Message: 7 of 7

Steve Eddins wrote:
> imwrite has supported writing CMYK TIFF files since MATLAB 6.5.1 (R13
> SP1).

Thanks, Steve. That's good to know. The functionality only appeared in the documentation after at least R2007b.

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