[Gimp-user] TIFF images and alpha

2003-01-27 Thread Claus B. Madsen



Hi,


I have a problem with The GIMP ... it is performins some undesired scaling
of my RGB values when I change alpha value.

The situation is as follows. I have an application which can generate TIFF
images. If I use this program to generate an image of some color, say RGB
= [20, 30, 40] for all pixels, and set alpha = 255 for all pixels, and
then load the generated image in GIMP, then everything is fine. Color
picker says the color of all pixels is [20, 30, 40], and alpha 255.

But then if I generate a new image, exact same colors, but alpha = 128,
and load the image in GIMP, then color picker says the color is [40, 60,
80], i.e., double the real values (although GIMP does tell me the right
alpha value, 128).

I might add that loading the image with 'xv' tells me that the color in
fact is [20, 30, 40], even though 'xv' cannot tell me what the alpha value
is.

If I generate another image, same color values, but e.g. alpha 10, then
color picker in GIMP says, alpha = 10, but by now the color values have
been scales so much, that the colorbalance is not the same anymore, e.g.,
RGB = [237, 245, 255]. In this last example I am unsure about the exact
result values (I was testing last night on my machine at home, and don't
remember the exact values).

In summary: it seems GIMP is scaling the RGB values in response to alpha,
alpha = 128 leads to double RGB values, alpha = 64 leads to four times the
actual RGB values, etc.

Have I misunderstood something?


Best,

Claus


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[Gimp-user] 2-byte TTF font brokenness - are there any options?(resend)

2003-01-27 Thread Christopher Hicks
[ I sent out a similar message before Christmas, but I'm hoping that 
sending this out again now that everybody's recovered might have a better 
chance of evoking a response.  For those seeing this twice, sorry. ]

I'm trying to get ttf fonts to work with gimp, but it seems like most of
the fonts that my users want to use are causing the This is a 2-byte font
and may not display correctly. message to appear.  The may not display  
in the message seems to consistantly translate into renders in image as a
tiny ugly font like the Windows System font.  Is there any workaround for
this?  We're using gimp 1.2.3 on RedHat 8.0.

I've searched the web for hours and submitted a bug to Red Hat (
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=80024 which includes
a detailed way to reproduce the problem) all without coming up with
anything.  I'm not afraid of cvs, compiling, patching, converting the
fonts somehow, or whatever, but I have no idea why it's happening or where
to begin.  Any guidance would be greatly appreciated.

-- 
/chris

Programming is a Dark Art, and it will always be. The programmer is
fighting against the two most destructive forces in the universe:
entropy and human stupidity. They're not things you can always
overcome with a methodology or on a schedule.
-Damian Conway, Perl God



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Re: [Gimp-user] 2-byte TTF font brokenness - are there any options?(resend)

2003-01-27 Thread Tom Williams
Christopher Hicks wrote:

 [ I sent out a similar message before Christmas, but I'm hoping that
 sending this out again now that everybody's recovered might have a better
 chance of evoking a response.  For those seeing this twice, sorry. ]

 I'm trying to get ttf fonts to work with gimp, but it seems like most of
 the fonts that my users want to use are causing the This is a 2-byte font
 and may not display correctly. message to appear.  The may not display
 in the message seems to consistantly translate into renders in image as a
 tiny ugly font like the Windows System font.  Is there any workaround for
 this?  We're using gimp 1.2.3 on RedHat 8.0.

 I've searched the web for hours and submitted a bug to Red Hat (
 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=80024 which includes
 a detailed way to reproduce the problem) all without coming up with
 anything.  I'm not afraid of cvs, compiling, patching, converting the
 fonts somehow, or whatever, but I have no idea why it's happening or where
 to begin.  Any guidance would be greatly appreciated.

I have NOT found a workaround for this particular problem, but I have found
another way around it:  don't use 2-byte TTFs!  :)  I know that is obvious
and what I did was start installing various Windows TTFs so my font selection
is now MUCH RICHER and I have no _need_ for the 2-byte TTFs that I wanted to
use before because I had only a handful of TTFs to choose from.

I've been going to several sites that offer FREE Windows TTFs for download
and then installing them in my X font set (using ttmkfontdir I believe is the
utility) and now I've got a rich set of great Windows fonts and I don't even
both with the 2-byte TTFs anymore.

At least, it's worth investigating... :)

Peace...

Tom

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Re: [Gimp-user] 2-byte TTF font brokenness - are there any options?(resend)

2003-01-27 Thread Christopher Hicks
On Mon, 27 Jan 2003, Tom Williams wrote:
 Christopher Hicks wrote:
  I'm trying to get ttf fonts to work with gimp, but it seems like most of
  the fonts that my users want to use are causing the This is a 2-byte font
  and may not display correctly. message to appear.  The may not display
  in the message seems to consistantly translate into renders in image as a
  tiny ugly font like the Windows System font.  Is there any workaround for
  this?  We're using gimp 1.2.3 on RedHat 8.0.
 
 I have NOT found a workaround for this particular problem, but I have
 found another way around it:  don't use 2-byte TTFs!  :)

But how can you tell what's going to be a 2-byte TTF and what's not?

 I've been going to several sites that offer FREE Windows TTFs for
 download and then installing them in my X font set (using ttmkfontdir I
 believe is the utility) and now I've got a rich set of great Windows
 fonts and I don't even both with the 2-byte TTFs anymore. At least, it's
 worth investigating... :)

Several of the fonts in question are from such sites, but in other
instances s specific font is being used for a web project and there's
virtually no chance of a replacement font being found.

-- 
/chris

Never offend people with style when you can offend them with substance.
- Sam Brown 

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[Gimp-user] Stroke selection

2003-01-27 Thread Andres Montiel
I am using 1.3.10 (compiled from source) on RedHat 8.0

I tried using the Edit - Stroke command to stroke the outline of a
selection. It gave me the message Paint operation failed. Message
repeated once. Am I using the Stroke command in a wrong manner?

- Andres

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Re: [Gimp-user] sound apps

2003-01-27 Thread sigir

Zeus [EMAIL PROTECTED] a écrit :

 I need a sound apps (runs on GTK or QT), the apps should have the 
 capabilities displaying sound histogram (sonogram). And capable to 
 record sound. reduce noises.
 
 it's for my final project at school. I want to be my final exam _100%_ 
 produce in my _Linux Boxes_.

I'm not sure having undestand your question. Sorry if it's not what
you search :

http://www.linuxsound.at/
http://www.demudi.org/
http://www.agnula.org/
http://www.alsa-project.org/
http://opensource.creative.com/
http://drocklinux.dyndns.org/rene/gsmp/
http://www.xdt.com/ar/linux-snd/digital.shtml
http://linuxartist.org/
http://www.linuxmusic.fr.st/

-- 
sigir

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Re: [Gimp-user] Stroke selection

2003-01-27 Thread David Millet
Anthony,


I tried using the Edit - Stroke command to stroke the outline of a
selection. It gave me the message Paint operation failed. Message
repeated once. Am I using the Stroke command in a wrong manner?



I am using 1.3.10 (compiled from source) on RedHat 8.0


^^ That is your mistake right there.  The only stable version of the gimp 
(meaning where everything is supposed to work) is 1.2.3.  1.3.10 is a 
development version.

David Millet


_
Protect your PC - get McAfee.com VirusScan Online  
http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963

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[Gimp-user] New Gimp FAQ: Call for Answers

2003-01-27 Thread Carol Spears
- Forwarded message from Nathan Carl Summers [EMAIL PROTECTED] -

This is the the Call for Answers for the clean room reimplementation of
the GIMP User FAQ.  Please send [EMAIL PROTECTED] a message stating your
intent to write an answer, and CC it to the lists so that no one else
takes that question.  If I do not recieve an answer within three days, I
will open that question up again.

Once all the questions are answered, I will send a final draft out for
comments.  The final version of the FAQ will be placed under the GNU Free
Documentation Licence.

Soon thereafter we will start with the Call for Questions for the
Developer FAQ.

I must reiterate that copying from the current GIMP FAQ's is simply not
acceptable.  Such submissions will be rejected.

If English is not your first language, don't feel that you can't take
part.  Any grammar mistakes will be lovingly corrected, so even if your
English is not perfect, you can still contribute significantly.

FAQ entries should be written with respect to 1.2.x, but should also
contain any significant changes in 1.3.x.  If you don't use 1.3.x, it is
not neccessary to mention differences in 1.3.x -- they will be added by
the GIMP web team.

Please do not assume that all readers of this document will be Linux users
-- we want to treat users of all supported operating systems equally, to
the extent that our limited resources are capible of supporting.

Here is the list of questions:

I. About the GIMP.

1.  What is the GIMP?
2.  What does GIMP stand for?
3.  What features does it have?
3a. What limitations does GIMP have?  How many layers, channels, etc. can
GIMP handle?
4.  How close in functionality to PhotoShop is the gimp?
4a. Does it support CMYK?
 b. 16-bit per channel images?
 c. Floating-point channels?
 d. Does GIMP provide a gamut warning like Photoshop?
5.  What are the minimum system requirements?
5a. What operating systems is it available for?
6.  Where can I get it?
6a. There are some binary versions on the GIMP website. Should I download
them or build GIMP myself?
6b. Where can I get non-official gimp packages for foo?
7.  What version should I get?
8.  What documentation is available?
8a. Where can I find some good GIMP tutorials?
9.  Is there a GIMP mailing list?
10. How about an IRC channel?
11. Where can I find other GIMP stuff?
12. What books on the gimp are recommended?  Beginner and intermediate
level books would be great.
13. Is GIMP a true GNU program?
14. What is the history of GIMP?
15. What is the relationship between GNOME and GIMP?
16. What is that cute little animal's name?  Who drew him?
17. Easter eggs are fun. Does GIMP have any?

II. Hardware Support

18. Does GIMP support digital cameras?
19. Does GIMP support scanners?
20. Does GIMP support drawing tablets?

III. Installing From Source

21. I just downloaded this GIMP soure thing, and now I don't know what to
do!  Help!
22. Ok, I'm trying to compile gimp, and this `./configure' program
complains about missing or old libraries.  What gives?
22a.But I know I have the right version of libfoo!  Why can't configure
find it?

IV. Basic Usage

23. How do layers work?
23a.What are layer masks and how do they work?
24. How do channels work?
25. Paths?
26. Selections?
26a.What is this Quick Mask?
27. How can I draw basic shapes (straight line, circle, square, etc.)?
28. How can I change the color I draw in?
29. How can I change the foreground color of some text to a pattern?
30. Is it possible to align text along a curve in an image?  If so, how is
it done?
31. What does feathering mean?
32. What does anti-aliasing mean?
33. What about subsampling?
34. How can I make what I have selected into a separate image?
35. How can I add what I have selected into a new image?
36. How can I make part of my image transparent?
36a.How can I make all of a certain color transparent?
37. How can I do gamma correction?

V. Animation

38. Can I create animations with GIMP?
38a.Where can I find online resources/tutorials on creating animations
with GIMP?
39. What restrictions are imposed on animations created with GIMP?

VI. Plug-ins

40. What are plug-ins?
41. Where can I find new plug-ins?
41a.How can I add them to my GIMP?
42. EEEK! I downloaded the latest version of gimp, and my favorite plug-in
has dissappeared!
43. Are Photoshop Filters/Plugins supported?

VII. Scripting

44. What is Script-Fu?
44a.How does the Xtns/Script-Fu menu differ from the Script-Fu pop-up
menu?
45. Where can I learn more about it?
46. How can I find out the step-by-step process to make the logo effects
in the Xtns/Script-Fu/Logos menu?  I can see the resultant layer
data, but have NO idea of how to do that myself.
47. How can I call a plug-in in Script-Fu?  How about another script?
48. What in the world is a Procedural Database Error?
49. Is there a macro recorder that automagically creates Script-Fu scripts
for me?

VIII. Customizing GIMP

50. How can I change keybindings?

[Gimp-user] Question about the Fuzzy Border Script-Fu script

2003-01-27 Thread Tom . Williams
Hi!  Ok, I've been beating my head against the wall trying to find out how
to do this:

1. take an image (any image)
2. Make a round selection (image/Script-Fu/Selection/Round)
3. Apply a Fuzzy Border to the round selection
(image/Script-Fu/Decor/Fuzzy Border)

Is this even possible?

Thanks in advance!

Peace

Tom


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[Gimp-user] Can't get canon s800 in the gimp-print plugin setup Printer Modellist.

2003-01-27 Thread Michael W. Digby
I'm tearing what little hair i have left out. Any pertinent suggestions 
would be appreciated. 
Running RH8.0 2.4.18-14 
With the following rpms 
cups-drivers-1.9-1.20020617.6 
cups-drivers-hpijs-1.9-1.20020617.6 
gimp-data-extras-1.2.0-6 
gtkam-gimp-0.1.4-6 
gimp-devel-1.2.3-9 
cups-drivers-pnm2ppa-1.9-1.20020617.6 
gimp-1.2.3-9 
xsane-gimp-0.84-8 
gimp-print-utils-4.2.4-3 
cups-1.1.17-0.2 
cups-libs-1.1.17-0.2 
cups-devel-1.1.17-0.2 
gimp-print-plugin-4.2.4-3 

I used the web interface to setup the printer for 'normal' printing, 
using cups + gimp-print 4.2.4 no problem. But when I try to print 
an image from gimp all I get is low grade crap, and the set up panel 
has all the fields such as Media Size,Type etc. grayed out. 
Any ideas where I went wrong. 

Thanks, in advance. 
Mike D. 



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Re: [Gimp-user] 2-byte TTF font brokenness - are there any options?(resend)

2003-01-27 Thread Tom Williams
Christopher Hicks wrote:

 On Mon, 27 Jan 2003, Tom Williams wrote:
  Christopher Hicks wrote:
   I'm trying to get ttf fonts to work with gimp, but it seems like most of
   the fonts that my users want to use are causing the This is a 2-byte font
   and may not display correctly. message to appear.  The may not display
   in the message seems to consistantly translate into renders in image as a
   tiny ugly font like the Windows System font.  Is there any workaround for
   this?  We're using gimp 1.2.3 on RedHat 8.0.
 
  I have NOT found a workaround for this particular problem, but I have
  found another way around it:  don't use 2-byte TTFs!  :)

 But how can you tell what's going to be a 2-byte TTF and what's not?

I don't know how to tell if any given TTF is a 2-byte TTF from a techincal
perspective.  From a practical perspective, I've found the more fancy or
artistic TTFs tend to NOT be 2-byte fonts and I haven't run into any problems
with using them.

So, I guess the 2-byte problem (until GIMP is fixed or changed) really depends
on which TTFs you need to use.

Peace.

Tom


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