Nabble - Gimp User

Re: gimpshop breaks Gimp 2.4 in Ubuntu Hardy Heron

2008-07-24T21:53:08Z

Robert Kennedy writes:
>
> After more testing and investigation, it looks like AWN is NOT to
> blame in breaking the gimp in Hardy Heron
[ ... ]
> But then I did a "sudo ldconfig". Then gimp stopped working. (But
> gimpshop still worked). If you did a "ldd `which gimp-2.4`", you would
> see the gimp loading some (but not all) libraries from /usr/local/lib
> where gimpshop installed libraries.
[ ... ]
> So it does look like a packaging issue. The gimpshop package should be
> modified to show a conflict with gimp. But since the gimpshop project
> appears to be dead that is not likely to happen.

It's a fairly well known problem, at least among people who maintain
both a locally built gimp and the one installed from their distro.

The current 2.5 release notes have a reasonable description of what's
happening (which also apply to gimpshop or any version of gimp you
might want to build yourself while still keeping a system-installed
version), and how to fix it:
http://www.gimp.org/release-notes/gimp-2.5.html
(scroll down to "Installation").

Whoever builds that gimpshop packageshould probably be doing this,
though maybe they just assume that no one would ever want both gimp
and gimpshop on the same system (but in that case, it should be
marked as a conflict in the package dependencies, as you say).
Failing that, you could probably fix it by moving all the gimpshop
stuff to some other place and using a script like the one in the
2.5 release notes.

...Akkana
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Re: AWN breaks the Gimp 2.4 in Ubuntu Hardy Heron

2008-07-24T21:19:53Z

Thanks David. Personally, I prefer the Gimp over Photoshop or gimpshop. I was just setting up a laptop for a 12 year old daughter of a friend of mine who is more familiar with Photoshop. So I installed gimpshop not knowing it would break the Gimp 2.4.5 (which I really wanted her to try). I figured with all the advantages and new features of the Gimp 2.4.5 over a hacked version of the Gimp based on version 2.2, she would end up using the Gimp!

I only posted my original EMAIL after searching the web and finding very little discussion on the error message: "Symbol look up error: undefined symbol: gimp_micro-version"

A reinstall ofthe Gimp did not solve the problem. I was stumped.

Now I know the problem and solution. Uninstall gimpshop.

I even posted a comment on a blog telling people how to install gimpshop on hardy Heron. (see http://delirial.com/archives/howto-gimpshop-on-ubuntu/ )

There was no mention that installing gimpshop would break the gimp. Now there is. I hope others get warned.

Rob

> Date: Fri, 25 Jul 2008 13:33:43 +0930
> From: 00ai99@...
> To: amtor@...
> Subject: Re: [Gimp-user] AWN breaks the Gimp 2.4 in Ubuntu Hardy Heron
> CC: gimp-user@...
>
> Hi,
> On Fri, Jul 25, 2008 at 12:09 PM, Joao S. O. Bueno <gwidion@...> wrote:
> > On Thursday 24 July 2008, Robert Kennedy wrote:
> >> So it does look like a packaging issue. The gimpshop package should
> >> be modified to show a conflict with gimp. But since the gimpshop
> >> project appears to be dead that is not likely to happen.
>
> GIMPhoto is similar and not dead. However, it's based on the same
> idea. Providing alternate user interfaces for an entire program only
> serves to confuse the user and make GIMP look like a Photoshop-clone,
> which it is not.
> So, you can possibly use GIMPhoto sometime in the future (author is
> working on compiling it in Linux), just be aware the the GIMP
> developers do not support it in anyway (except, as Joao says, in
> supporting it's removal from existence). I'm actually a little
> surprised that the first replier didn't say something like 'drop it,
> we don't care about gimpshop cause it's bullshit, stop using a
> f***ed-up hack of gimp if you want things to work in a non-f***ed-up
> way.'. Joao was a little more polite.
>
> >
> >
> > Indeed. the right thing to do would be modify the gimp-shop package
> > to "non-existent' - retroactively.
> >
>
> David

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Re: AWN breaks the Gimp 2.4 in Ubuntu Hardy Heron

2008-07-24T21:03:43Z

Hi,
On Fri, Jul 25, 2008 at 12:09 PM, Joao S. O. Bueno <gwidion@...> wrote:
> On Thursday 24 July 2008, Robert Kennedy wrote:
>> So it does look like a packaging issue. The gimpshop package should
>> be modified to show a conflict with gimp. But since the gimpshop
>> project appears to be dead that is not likely to happen.

GIMPhoto is similar and not dead. However, it's based on the same
idea. Providing alternate user interfaces for an entire program only
serves to confuse the user and make GIMP look like a Photoshop-clone,
which it is not.
So, you can possibly use GIMPhoto sometime in the future (author is
working on compiling it in Linux), just be aware the the GIMP
developers do not support it in anyway (except, as Joao says, in
supporting it's removal from existence). I'm actually a little
surprised that the first replier didn't say something like 'drop it,
we don't care about gimpshop cause it's bullshit, stop using a
f***ed-up hack of gimp if you want things to work in a non-f***ed-up
way.'. Joao was a little more polite.

>
>
> Indeed. the right thing to do would be modify the gimp-shop package
> to "non-existent' - retroactively.
>

David
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Re: AWN breaks the Gimp 2.4 in Ubuntu Hardy Heron

2008-07-24T19:39:54Z

On Thursday 24 July 2008, Robert Kennedy wrote:
> So it does look like a packaging issue. The gimpshop package should
> be modified to show a conflict with gimp. But since the gimpshop
> project appears to be dead that is not likely to happen.

Indeed. the right thing to do would be modify the gimp-shop package
to "non-existent' - retroactively.

js
-><-
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Re: AWN breaks the Gimp 2.4 in Ubuntu Hardy Heron

2008-07-24T19:30:55Z

After more testing and investigation, it looks like AWN is NOT to blame in breaking the gimp in Hardy Heron. It was just mere coincidence that the installation of AWN also was the start of the gimp not working.

I booted off the Ubuntu Hardy Heron Live CD and installed gimpshop via dpkg -i. Both gimp and gimpshop worked perfectly. If you did a "ldd `which gimp-2.4`", you would see that the gimp only loaded libraries in /lib and /usr/lib and NOT any libraries installed by Gimpshop in /usr/local/lib.

Since gimpshop was installed vua "dpkg -i", the library cache was never regenerated.

But then I did a "sudo ldconfig". Then gimp stopped working. (But gimpshop still worked). If you did a "ldd `which gimp-2.4`", you would see the gimp loading some (but not all) libraries from /usr/local/lib where gimpshop installed libraries.

When I installed AWN via apt-get, the library cache got regenerated (via ldconfig). Then the gimp stopped working.

So it does look like a packaging issue. The gimpshop package should be modified to show a conflict with gimp. But since the gimpshop project appears to be dead that is not likely to happen.

From: amtor@...
To: gimp-user@...
Date: Thu, 24 Jul 2008 19:19:04 +0000
Subject: Re: [Gimp-user] AWN breaks the Gimp 2.4 in Ubuntu Hardy Heron

I found that problem.

The Latest version of the Avant Window Manager (installed from the "deb http://ppa.launchpad.net/reacocard-awn/ubuntu hardy main" repo) BREAKS gimp 2.4.5 in Hardy Heron 8.04.1.

You can easily verify that this is the problem. 1. Boot off the Hardy Heron 8.04.1 Live CD.
2. Add the repos:
deb http://ppa.launchpad.net/reacocard-awn/ubuntu hardy main
deb-src http://ppa.launchpad.net/reacocard-awn/ubuntu hardy main
( See http://ubuntuforums.org/showthread.php?t=762363 )

3. sudo apt-get update
4. sudo apt-get install avant-window-navigator-bzr awn-core-applets-bzr awn-manager-bzr
5. Try to run gimp. It will not run. If you run gimp from the terminal, you will see the following error:
symbol lookup error: undefined symbol: gimp_micro_version
Now try to get gimp to run again. I can't!
I tried to COMPLETELY uninstall the following:
awn (using the instructions on the http://ubuntuforums.org/showthread.php?t=762363)
gimp
gimp-data
libgimp.
I even manually deleted the .gimp-2.4/ folder in my home directory. Then deleted the AWN third party rep sources and reinstalled gimp. I still see the error.
This bug is VERY annoying. I would really like to get gimp running again.

Any Ideas?
Rob

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Re: alpha channel computation

2008-07-24T12:33:15Z

Hi,

On Thu, 2008-07-24 at 11:49 -0700, Nerius Landys wrote:

> Hello. I have a TGA image that is fully opaque. I want to introduce
> translucency to the image, making each pixel translucent according to
> how far away from black it is. If a pixel is originally black, it
> becomes fully opaque. If a pixel is originally white, it becomes
> fully transparent. If a pixel is 0x7f7f7f (gray) or 0xff007f
> (approximately halfway in brighness between dark and light), it
> becomes somewhere around half transparent (computed using diagonal of
> color cube).
>
> Is there an easy way to do this in GIMP?

Easy. Just add a layer mask. In the dialog for creating the mask, choose
to initialize the mask with "Grayscale copy of layer". Now you already
got almost what you want. You just need to invert the mask as you want
white to be transparent and black to be opaque. Colors->Invert will do
this. Now all you need to do is to apply the layer mask.

Sven

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Re: Problem with psd files under Ubuntu

2008-07-24T12:28:16Z

Hi,

On Wed, 2008-07-23 at 13:06 +0200, Heiko Schmidt wrote:

> I'm currently not able to open psd files with Gimp. (SVN build under
> Ubuntu). During the process to opening the file the progress bar stops
> by ca 75%. With Gimp 2.4.5 the same. I can load all the those psd files
> under Windows with Gimp 2.4.6.

Please file a bug report for this issue at http://bugzilla.gnome.org/
and attach an example file to the bug report. Thanks.

Sven

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Re: AWN breaks the Gimp 2.4 in Ubuntu Hardy Heron

2008-07-24T12:19:04Z

I found that problem.

The Latest version of the Avant Window Manager (installed from the "deb http://ppa.launchpad.net/reacocard-awn/ubuntu hardy main" repo) BREAKS gimp 2.4.5 in Hardy Heron 8.04.1.

You can easily verify that this is the problem. 1. Boot off the Hardy Heron 8.04.1 Live CD.
2. Add the repos:
deb http://ppa.launchpad.net/reacocard-awn/ubuntu hardy main
deb-src http://ppa.launchpad.net/reacocard-awn/ubuntu hardy main
( See http://ubuntuforums.org/showthread.php?t=762363 )

3. sudo apt-get update
4. sudo apt-get install avant-window-navigator-bzr awn-core-applets-bzr awn-manager-bzr
5. Try to run gimp. It will not run. If you run gimp from the terminal, you will see the following error:
symbol lookup error: undefined symbol: gimp_micro_version
Now try to get gimp to run again. I can't!
I tried to COMPLETELY uninstall the following:
awn (using the instructions on the http://ubuntuforums.org/showthread.php?t=762363)
gimp
gimp-data
libgimp.
I even manually deleted the .gimp-2.4/ folder in my home directory. Then deleted the AWN third party rep sources and reinstalled gimp. I still see the error.
This bug is VERY annoying. I would really like to get gimp running again.

Any Ideas?
Rob

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alpha channel computation

2008-07-24T11:49:27Z

Hello. I have a TGA image that is fully opaque. I want to introduce translucency to the image, making each pixel translucent according to how far away from black it is. If a pixel is originally black, it becomes fully opaque. If a pixel is originally white, it becomes fully transparent. If a pixel is 0x7f7f7f (gray) or 0xff007f (approximately halfway in brighness between dark and light), it becomes somewhere around half transparent (computed using diagonal of color cube).

Is there an easy way to do this in GIMP? i can imagine writing a quickie computer program to do this for me, but I'm sure the easier way would be to convince GIMP to do this for me.

Thanks.

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Can No Longer startup Gimp 2.4 in Ubuntu Hardy Heron

2008-07-24T09:37:27Z

I just installed Ubuntu Hardy Heron 8.04.1 a week ago on a x86 PC. And gimp was working just fine.

Then I installed Gimpshop (based on gimp 2.2). FYI -- Gimpshop installs into a different directory /usr/local/bin.

Both gimp and gimpshop were working. In fact you could run both at the same time.

But now when I start gimp, I get this error:

symbol lookup error: undefined symbol: gimp_micro_version

I tried to reinstall gimp. That made no difference.

I did search google and this error is rarely reported.

Any ideas? I am really stumped and would like to get gimp working. I thought someone on this list might have an idea.

RobK
_________________________________________________________________
Try Chicktionary, a game that tests how many words you can form from the letters given. Find this and more puzzles at Live Search Games!
http://g.msn.ca/ca55/207
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Re: Gimp-user Digest, Vol 70, Issue 17

2008-07-23T12:48:05Z

Hello
I'm running the new Gimp package on OS 10.5.4. Thanks to all who are
involved in its development.
As a mosaic artist and not a programmer, I am keen to know if there's
a way to revive the "conical
anamorphose" filter that I understand was part of earlier versions. I
would like to make a 3-d rendering of an image and then apply glass
and stone to it.

Could anyone explain to a lay person how this filter could be added to
the program -- if it can?

Thanks so much,
George

On Jul 23, 2008, at 3:00 PM, gimp-user-request@...
wrote:

> Send Gimp-user mailing list submissions to
> gimp-user@...
>
> To subscribe or unsubscribe via the World Wide Web, visit
> https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
> or, via email, send a message with subject or body 'help' to
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> You can reach the person managing the list at
> gimp-user-owner@...
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Gimp-user digest..."
>
>
> Today's Topics:
>
> 1. IPTC data (Andrew)
> 2. Problem with psd files under Ubuntu (Heiko Schmidt)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 23 Jul 2008 10:25:32 +0200
> From: Andrew <ald2@...>
> Subject: [Gimp-user] IPTC data
> To: gimp-user@...
> Message-ID: <4886EAFC.3080902@...>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Good day,
>
> My workflow is: Pentax raw (.pef) > rawstudio > gimp > save as tif >
> add
> iptc data with exiftool. If I then open the tif again in gimp I get
> the
> following message:
>
> wrong data type 7 for "XMLPacket"; tag ignored
>
> and on saving again all the iptc data has gone.
>
> Is there a solution to this?
>
> TIA,
>
> Andrew
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 23 Jul 2008 13:06:13 +0200
> From: Heiko Schmidt <HeikHeiksen@...>
> Subject: [Gimp-user] Problem with psd files under Ubuntu
> To: gimp-user@...
> Message-ID: <488710A5.50502@...>
> Content-Type: text/plain; charset=ISO-8859-15; format=flowed
>
> Hi,
>
> I'm currently not able to open psd files with Gimp. (SVN build under
> Ubuntu). During the process to opening the file the progress bar stops
> by ca 75%. With Gimp 2.4.5 the same. I can load all the those psd
> files
> under Windows with Gimp 2.4.6.
>
> Here is a stack trace. Maybe someone can help. Would be appreciated.
>
> /home/heik/gimpSVN/lib/gimp/2.0/plug-ins/psd (pid:6734): [E]xit,
> [H]alt,
> show [S]tack trace or [P]roceed: S
> #0 0xb7efc410 in __kernel_vsyscall ()
> #1 0xb76f98c3 in __waitpid_nocancel () from
> /lib/tls/i686/cmov/libpthread.so.0
> #2 0xb7765965 in g_on_error_stack_trace () from /usr/lib/
> libglib-2.0.so.0
> #3 0xb7765e85 in g_on_error_query () from /usr/lib/libglib-2.0.so.0
> #4 0xb7d94394 in gimp_plugin_sigfatal_handler (sig_num=11) at
> gimp.c:1539
> #5 <signal handler called>
> #6 0x0804c718 in add_layers (image_id=1, img_a=0xbf856374,
> lyr_a=0x8064000,
> #7 0x0804e28f in load_image (
> #8 0x0804a484 in run (name=<value optimized out>, nparams=3,
> param=0x8062480,
> #9 0xb7d94a78 in gimp_main (info=0x8053d10, argc=6, argv=0xbf856604)
> #10 0x0804a6da in main (argc=0, argv=0x0) at psd.c:59
> /home/heik/gimpSVN/lib/gimp/2.0/plug-ins/psd (pid:6734): [E]xit,
> [H]alt,
> show [S]tack trace or [P]roceed:
>
> Heiko
>
>
>
> ------------------------------
>
> _______________________________________________
> Gimp-user mailing list
> Gimp-user@...
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>
>
> End of Gimp-user Digest, Vol 70, Issue 17
> *****************************************

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Problem with psd files under Ubuntu

2008-07-23T04:06:13Z

Hi,

I'm currently not able to open psd files with Gimp. (SVN build under
Ubuntu). During the process to opening the file the progress bar stops
by ca 75%. With Gimp 2.4.5 the same. I can load all the those psd files
under Windows with Gimp 2.4.6.

Here is a stack trace. Maybe someone can help. Would be appreciated.

/home/heik/gimpSVN/lib/gimp/2.0/plug-ins/psd (pid:6734): [E]xit, [H]alt,
show [S]tack trace or [P]roceed: S
#0 0xb7efc410 in __kernel_vsyscall ()
#1 0xb76f98c3 in __waitpid_nocancel () from
/lib/tls/i686/cmov/libpthread.so.0
#2 0xb7765965 in g_on_error_stack_trace () from /usr/lib/libglib-2.0.so.0
#3 0xb7765e85 in g_on_error_query () from /usr/lib/libglib-2.0.so.0
#4 0xb7d94394 in gimp_plugin_sigfatal_handler (sig_num=11) at gimp.c:1539
#5 <signal handler called>
#6 0x0804c718 in add_layers (image_id=1, img_a=0xbf856374,
lyr_a=0x8064000,
#7 0x0804e28f in load_image (
#8 0x0804a484 in run (name=<value optimized out>, nparams=3,
param=0x8062480,
#9 0xb7d94a78 in gimp_main (info=0x8053d10, argc=6, argv=0xbf856604)
#10 0x0804a6da in main (argc=0, argv=0x0) at psd.c:59
/home/heik/gimpSVN/lib/gimp/2.0/plug-ins/psd (pid:6734): [E]xit, [H]alt,
show [S]tack trace or [P]roceed:

Heiko

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IPTC data

2008-07-23T01:23:32Z

Good day,

My workflow is: Pentax raw (.pef) > rawstudio > gimp > save as tif > add
iptc data with exiftool. If I then open the tif again in gimp I get the
following message:

wrong data type 7 for "XMLPacket"; tag ignored

and on saving again all the iptc data has gone.

Is there a solution to this?

TIA,

Andrew

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Re: Color profiles & color spaces -- assignment v. conversion?

2008-07-19T05:06:49Z

Hi,

"Assign colorspace" and "Convert colorspace" are provided by the "icc_colorspace" plug-in. This plug-in is bundled with the Separate+.

# In the future, the support of abstract/devicelink profiles will be added to this plug-in.

> How is assigning or converting a *colour space* different from a
> *colour profile*? The options appear to be the same as for colour
> profiles.

Color profiles define the detail of colorspaces.

--
Yoshinori Yamakawa <yam@...>
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Re: Color profiles & color spaces -- assignment v. conversion?

2008-07-17T19:56:45Z

Hi Hedley,

On Fri, Jul 18, 2008 at 12:06 PM, Hedley Finger
<hfinger@...> wrote:

>
> David, Sven:
>
> On Thu, 2008-07-17 at 16:52 +1000, Hedley Finger wrote:
>
>
> I know just enough about colour management to get myself into trouble.
>
> On Gimp 2.4.6, there are now some new options under the Image > Mode >
> menu path, namely
>
> @ Assign to Color Profile // Actually uses Little CMS (lcms)
> @ Convert to Color Profile // Actually uses Little CMS (lcms)
>
> @ Assign colorspace // Hmmm, should be 'Color Space' for niceness?
> @ Convert colorspace // Likewise!
>
>
> Sven replied:
>
> If you see four options there, then you have installed some additional
> third-party plug-ins for color management that you should not need with
> GIMP 2.4. It's probably best to get rid of those extra plug-in(s).
>
>
> Yes, a respondent on another list said something similar -- the last two
> options were probably inherited from a previous Gimp 2.x release, because
> the Windows installer by default installs into the c:\Program
> Files\Gimp-2.0\ folder created by previous installers. The first two
> options actually call Little CMS to do the work.
>
> @ What does *assigning* an image to a colour profile do and what
> effect does it have on colour management downstream?
>
>
> It changes the meaning of the pixel values. Generally this means the
> image looks different.
>
>
> David, I see no difference when importing an image with no attached/assigned
> profile. But you are saying that the pixel numbers do not change, so no
> harm done if an inappropriate profile assigned -- just assign a more
> appropriate one?

Yes, no harm done.
Images always use a color profile, even when there is none assigned.
In GIMP preferences, 'RGB profile' determines the color profile used
if the image has no profile assigned. By default this is set to None;
None is treated as if it were sRGB.

> @ How is *converting* an image to a colour profile differ from
> "assigning", and what effect does it have on colour management downstream?
>
>
> Converting, instead of assigning a different meaning to pixel values,
> converts the pixel values from the previous color profile to the
> profile you specify, so that the result is as close to identical as
> possible to the original..
>
>
> So this is an irreversible step -- you may not be able to convert back to a
> previous profile because the pixel values may not contain enough information
> to allow this to happen?

Yes. With GIMP's current limitation of 8bit/channel, some data loss is
virtually guaranteed. After GIMP supports floating point images, data
loss should become negligible when using floating point.

David
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Re: Color profiles & color spaces -- assignment v. conversion?

2008-07-17T19:36:55Z

David, Sven:

On Thu, 2008-07-17 at 16:52 +1000, Hedley Finger wrote:

I know just enough about colour management to get myself into trouble.

On Gimp 2.4.6, there are now some new options under the Image > Mode >
menu path, namely 

@   Assign to Color Profile // Actually uses Little CMS (lcms)
@   Convert to Color Profile // Actually uses Little CMS (lcms)

@   Assign colorspace  // Hmmm, should be 'Color Space' for niceness?
@   Convert colorspace  // Likewise!

Sven replied:

If you see four options there, then you have installed some additional
third-party plug-ins for color management that you should not need with
GIMP 2.4. It's probably best to get rid of those extra plug-in(s).

Yes, a respondent on another list said something similar -- the last two options were probably inherited from a previous Gimp 2.x release, because the Windows installer by default installs into the c:\Program Files\Gimp-2.0\ folder created by previous installers. The first two options actually call Little CMS to do the work.

@   What does *assigning* an image to a colour profile do and what
effect does it have on colour management downstream?

It changes the meaning of the pixel values. Generally this means the
image looks different.

David, I see no difference when importing an image with no attached/assigned profile. But you are saying that the pixel numbers do not change, so no harm done if an inappropriate profile assigned -- just assign a more appropriate one?

@   How is *converting* an image to a colour profile differ from
"assigning", and what effect does it have on colour management downstream?

Converting, instead of assigning a different meaning to pixel values,
converts the pixel values from the previous color profile to the
profile you specify, so that the result is as close to identical as
possible to the original..

So this is an irreversible step -- you may not be able to convert back to a previous profile because the pixel values may not contain enough information to allow this to happen?

Regards,
Hedley

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28 Regent Street   Camberwell VIC 3124   Australia
Tel. +61 3 9809 1229   Fax. (call phone first)
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Re: Color profiles & color spaces -- assignment v. conversion?

2008-07-17T12:11:29Z

Hi,

On Thu, 2008-07-17 at 16:52 +1000, Hedley Finger wrote:

If you see four options there, then you have installed some additional
third-party plug-ins for color management that you should not need with
GIMP 2.4. It's probably best to get rid of those extra plug-in(s).

Sven

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Re: Color profiles & color spaces -- assignment v. conversion?

2008-07-17T03:23:05Z

Hi Hedley,

On Thu, Jul 17, 2008 at 4:22 PM, Hedley Finger
<hfinger@...> wrote:

>
> I know just enough about colour management to get myself into trouble.
>
> On Gimp 2.4.6, there are now some new options under the Image > Mode >
> menu path, namely
>
> @ Assign to Color Profile // Actually uses Little CMS (lcms)
> @ Convert to Color Profile // Actually uses Little CMS (lcms)
>
> @ Assign colorspace // Hmmm, should be 'Color Space' for niceness?
> @ Convert colorspace // Likewise!
>
> At the moment there are no Help topics nor topics on the User Manual
> site for these menu options, so can some Photoshop, graphic arts, or
> prepress guru assist with these queries:
>
> @ What does *assigning* an image to a colour profile do and what
> effect does it have on colour management downstream?

It changes the meaning of the pixel values. Generally this means the
image looks different.

> @ How is *converting* an image to a colour profile differ from
> "assigning", and what effect does it have on colour management downstream?
Converting, instead of assigning a different meaning to pixel values,
converts the pixel values from the previous color profile to the
profile you specify, so that the result is as close to identical as
possible to the original..

> How is assigning or converting a *colour space* different from a
> *colour profile*? The options appear to be the same as for colour
> profiles.
There is no difference.

>
> Are these two sets of lcms and Gimp dialogue alternative ways of
> getting the same result on the image, or is one set changing the image
> file and the other is actually doing something to the profile files
> (aaaarrgghhhh!)?
No.

David
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Color profiles & color spaces -- assignment v. conversion?

2008-07-16T23:52:26Z

I know just enough about colour management to get myself into trouble.

On Gimp 2.4.6, there are now some new options under the Image > Mode >
menu path, namely

@   Assign to Color Profile // Actually uses Little CMS (lcms)
@   Convert to Color Profile // Actually uses Little CMS (lcms)

@   Assign colorspace // Hmmm, should be 'Color Space' for niceness?
@   Convert colorspace // Likewise!

At the moment there are no Help topics nor topics on the User Manual
site for these menu options, so can some Photoshop, graphic arts, or
prepress guru assist with these queries:

@   What does *assigning* an image to a colour profile do and what
effect does it have on colour management downstream?
@   How is *converting* an image to a colour profile differ from
"assigning", and what effect does it have on colour management downstream?

How is assigning or converting a *colour space* different from a
*colour profile*? The options appear to be the same as for colour
profiles.

Are these two sets of lcms and Gimp dialogue alternative ways of
getting the same result on the image, or is one set changing the image
file and the other is actually doing something to the profile files
(aaaarrgghhhh!)?

For example, the image I am looking at has these options ...

   Assign ICC Color Profile // Little CMS dialogue       Current Color Profile: Adobe RGB (1998)       Assign: [ Adobe RGB (1998) V ] // drop-down list
... but ...

   Assign colorspace // Gimp dialogue       Current colorspace: None (use RGB workspace temporarily)       New colorspace:          (o) Unassign colorspace          ( ) Workspace: Adobe RGB (1998)          ( ) Profile: [ Not selected V ] // drop-down list
The conversion dialogues have these options ...

   Convert to ICC Color Profile // Little CMS dialogue       Current Color Profile: Adobe RGB (1998)       Convert to: [ RGB workspace (Adobe RGB (1998)) V ]       Rendering intent: [ Perceptual V ]       [ ] Black point compensation
... and ...

   Convert colorspace // Gimp dialogue       Source colorspace: None (use RGB colorspace temporarily)       Rendering intent: [ Perceptual V ]          [ ] Use BPC compensation       Destination colorspace:          (o) Workspace: Adobe RGB (1998)          ( ) Profile: [ not selected V ]       [ ] Flatten image to preserve appearance
Sure hope a developer is reading this list and can assist the puzzled
and the troubled!

Regards,
Hedley

-- 

Hedley Finger

28 Regent Street   Camberwell VIC 3124   Australia
Tel. +61 3 9809 1229   Fax. (call phone first)
Mob. (cell) +61 412 461 558
Email. "Hedley Finger" hfinger@...

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wacom on gimp

2008-07-15T20:41:43Z

Will SuSE11 support Bamboo? I bought the medium Bamboo, the $130 model,but I dont' see a model number. When I go to YAST, install hardware,
tablet properties, Wacom, and then it opens up to give me four Wacom choises: Graphire serial or usb, and Intuos serial and usb.
There is no option for Bamboo.
Should I chose one of those?

Also, do I need the installation disks? The disks say for mac or windows (of course).

Thanks for help,

--
Helen Etters
using Linux, SuSE11

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bamboo on gimp

2008-07-15T20:41:01Z

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bamboo with gimp

2008-07-15T20:39:36Z

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Re: Will Gimp support bamboo?

2008-07-15T16:14:17Z

Hi Helen,

On Wed, Jul 16, 2008 at 8:37 AM, Helen <etters.h@...> wrote:
> Following the advice of several on this list, I bought the Wacom brand,
>
> Will SuSE11 support Bamboo? I bought the medium Bamboo, the $130 model,but
> I don't see a model number.
> I go to YAST, install hardware, tablet properties, Wacom, and then it opens
> up to give me four Wacom choises:
> Graphire serial or usb, and Intuos serial and usb.
A recent version of linuxwacom should support Bamboo explicitly.
Either your version of linuxwacom is too old to support Bamboo
explicitly, or that option is omitted from the GUI.

IIRC selecting Graphire USB should work with the Bamboo (which is
USB-only, right?)

> There is no option for Bamboo.
> Should I chose one of those?
>
> Also, do I need the installation disks? The disks say for mac or windows
> (of course).
Nope.

David
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Will Gimp support bamboo?

2008-07-15T16:07:40Z

Following the advice of several on this list, I bought the Wacom brand,

Will SuSE11 support Bamboo? I bought the medium Bamboo, the $130 model,but I don't see a model number.
I go to YAST, install hardware, tablet properties, Wacom, and then it opens up to give me four Wacom choises:
Graphire serial or usb, and Intuos serial and usb.
There is no option for Bamboo.
Should I chose one of those?

Also, do I need the installation disks? The disks say for mac or windows (of course).

Thanks for help,

--
Helen Etters
using Linux, SuSE11

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Re: linux gimp pen tablet

2008-07-15T05:15:49Z

On Tue, Jul 15, 2008 at 8:15 AM, Helen <etters.h@...> wrote:

On Tue, Jul 15, 2008 at 8:11 AM, Helen <etters.h@...> wrote:
Will SuSE11 support Bamboo? I bought the medium Bamboo, the $130 model,but I dont' see a model number on the box. When I go to YAST, install hardware,
tablet properties, Wacom, and then it opens up to give me four Wacom choises: Graphire serial or usb, and Intuos serial and usb.
There is no option for Bamboo.
Should I chose one of those?

Also, do I need the installation disks? The disks say for mac or windows (of course).

Thanks for help,
Helen, using LInux, SuSE11, Gimp 2.4
On Mon, Jul 14, 2008 at 8:05 PM, Flávio Pontes <flaviocpontes@...> wrote:
Definitely a Wacom.

If you have a purse fat enough go for an Intuos2, else get a Bamboo.
I own a 6"x11" Intuos3 and it work fine with GIMP.
I'd like better control in GIMP over the pressure sensitivity and other tablet features, though.

Em Sáb, 2008-07-12 às 07:48 -0400, Helen escreveu:
I have successfully installed SuSE11, and now I'm looking for a digital pen/tablet that works with gimp.
Does anyone have a recommendation (or a disrecommendation) for a brand/model that works well
with Gimp?

I don't need the most expensive model, but I do want one that is good quality and will get along
nicely with Linux, SuSE11, and Gimp 2.4.

Thanks much!

Helen

--
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using Linux, SuSE11
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using Linux, SuSE11
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using Linux, SuSE11

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Re: linux gimp pen tablet

2008-07-15T05:15:01Z

On Tue, Jul 15, 2008 at 8:11 AM, Helen <etters.h@...> wrote:

Will SuSE11 support Bamboo? I bought the medium Bamboo, the $130 model,but I dont' see a model number on the box. When I go to YAST, install hardware,
tablet properties, Wacom, and then it opens up to give me four Wacom choises: Graphire serial or usb, and Intuos serial and usb.
There is no option for Bamboo.
Should I chose one of those?

Also, do I need the installation disks? The disks say for mac or windows (of course).

Thanks for help,
Helen, using LInux, SuSE11, Gimp 2.4
On Mon, Jul 14, 2008 at 8:05 PM, Flávio Pontes <flaviocpontes@...> wrote:
Definitely a Wacom.

If you have a purse fat enough go for an Intuos2, else get a Bamboo.
I own a 6"x11" Intuos3 and it work fine with GIMP.
I'd like better control in GIMP over the pressure sensitivity and other tablet features, though.

Em Sáb, 2008-07-12 às 07:48 -0400, Helen escreveu:
I have successfully installed SuSE11, and now I'm looking for a digital pen/tablet that works with gimp.
Does anyone have a recommendation (or a disrecommendation) for a brand/model that works well
with Gimp?

I don't need the most expensive model, but I do want one that is good quality and will get along
nicely with Linux, SuSE11, and Gimp 2.4.

Thanks much!

Helen

--
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using Linux, SuSE11
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using Linux, SuSE11

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using Linux, SuSE11

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Re: linux gimp pen tablet

2008-07-15T05:11:21Z

Will SuSE11 support Bamboo? I bought the medium Bamboo, the $130 model,but I dont' see a model number on the box. When I go to YAST, install hardware,
tablet properties, Wacom, and then it opens up to give me four Wacom choises: Graphire serial or usb, and Intuos serial and usb.
There is no option for Bamboo.
Should I chose one of those?

Also, do I need the installation disks? The disks say for mac or windows (of course).

Thanks for help,
Helen, using LInux, SuSE11, Gimp 2.4

On Mon, Jul 14, 2008 at 8:05 PM, Flávio Pontes <flaviocpontes@...> wrote:

Definitely a Wacom.

If you have a purse fat enough go for an Intuos2, else get a Bamboo.
I own a 6"x11" Intuos3 and it work fine with GIMP.
I'd like better control in GIMP over the pressure sensitivity and other tablet features, though.

Em Sáb, 2008-07-12 às 07:48 -0400, Helen escreveu:
I have successfully installed SuSE11, and now I'm looking for a digital pen/tablet that works with gimp.
Does anyone have a recommendation (or a disrecommendation) for a brand/model that works well
with Gimp?

I don't need the most expensive model, but I do want one that is good quality and will get along
nicely with Linux, SuSE11, and Gimp 2.4.

Thanks much!

Helen

--
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using Linux, SuSE11
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using Linux, SuSE11

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Re: reset

2008-07-13T23:45:31Z

Hi,

On Sun, 2008-07-13 at 20:32 -0600, Bob Meetin wrote:
> On windows how do I reset GIMP (2.2) to default, vanilla? Can I do this
> through the GUI or is there a config file which I can delete? -Bob

Have a look at the Preferences dialog. Many things can be reset using
the GUI. But if you need to reset everything, then you can just delete
your personal GIMP folder (.gimp-2.2). GIMP will then recreate it with
defaults on next start.

Sven

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reset

2008-07-13T19:32:09Z

On windows how do I reset GIMP (2.2) to default, vanilla? Can I do this
through the GUI or is there a config file which I can delete? -Bob

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Re: using gimp on Pavilion XF2510 screen in tablet mode

2008-07-13T09:07:46Z

Simon Nickau wrote:
> I don't have a HP tablet pc myself but one made by Acer. I'm guessing
> the tablet component of the HP will be the same as this one: a Wacom
> serial device, at least all the tablet pcs I've looked at contained
> this.<snip>
> -Simon
>
Thanks, Simon. That's very helpful. I'll be using Linux FWIW; so the
Acer suggestion makes sense as well.

-- bgw
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Re: using grid on gimp

2008-07-13T03:29:37Z

On Sat, 12 Jul 2008 14:56:19 -0400
cabrio531@... wrote:

> Hi,
>
> I am trying to make 10 cm and 20 cm horizontal and vertical lines on
> a photo.? In other word, trying to divide a photo into thirds. Can
> someone help?? Thanks.
>
> Ellen

Does Filters->Web->Slice help?

Owen
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Re: using grid on gimp

2008-07-12T21:34:11Z

Quoting cabrio531@...:

> I am trying to make 10 cm and 20 cm horizontal and vertical lines on
> a photo.? In other word, trying to divide a photo into thirds. Can
> someone help?? Thanks.

I wrote a Script-fu a while back which will create a 3x3 grid layer
based upon the dimensions of either the current layer or the image.
The grid is created on a new layer so you can remove it or hide as
necessary.

The command is added to the menus under "Filters->Render-Pattern->Rule
of thirds grid" and the code for the script is located at the
following URL:
http://flashingtwelve.brickfilms.com/GIMP/Scripts/thirds-rule-grid.scm

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using gimp on Pavilion XF2510 screen in tablet mode

2008-07-12T17:01:44Z

Does anybody have experience with the HP Pavilion notebooks (like XF1420
- XF2520) whose screen can apparently operate as a tablet?

I'm thinking of buying one for the purpose.
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Re: using grid on gimp

2008-07-12T16:15:28Z

Hi Ellen,
You can select 'cm' as the unit in the grid configuration dialog.
whether this does exactly the right thing is something you'll have to
check yourself.
(personally, I would look at the pixel width and height, and divide
them by 3. I'm not used to working in cm.)

The grid configuration dialog is found in the Image menu
(Image->Configure Grid).

On Sun, Jul 13, 2008 at 4:26 AM, <cabrio531@...> wrote:
> Hi,
>
> I am trying to make 10 cm and 20 cm horizontal and vertical lines on a
> photo. In other word, trying to divide a photo into thirds. Can someone
> help? Thanks.
>
> Ellen
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using grid on gimp

2008-07-12T11:56:19Z

Hi,

I am trying to make 10 cm and 20 cm horizontal and vertical lines on a photo. In other word, trying to divide a photo into thirds. Can someone help? Thanks.

Ellen

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