Making Transparent from Non-Transparent

2001-01-12 Thread Jonathan Gift

Hi,

Second big question is I have a lot of old logos Istored on a black
background. Is there a way of turning the black transparent so that I
can drop the logos on to a new background?

I've looked in my small book but it doesn't cut. Another PS would be
what are the best books? The Gimp Manual and Grokking The Gimp?

Thanks,

Jonathan

"Hey, I think I finally got the hang of i-"




RE: Making Transparent from Non-Transparent

2001-01-12 Thread COUTIER Eric

Under linux at least, there's a plugin named colortoalpha (i dont't know
where in the menu exactly, i believe under Image/Colors, search in the PDB)
that can be good for this.

-Message d'origine-
De: Jonathan Gift [mailto:[EMAIL PROTECTED]]
Date: vendredi 12 janvier 2001 13:34
À: Gimp
Objet: Making Transparent from Non-Transparent


Hi,

Second big question is I have a lot of old logos Istored on a black
background. Is there a way of turning the black transparent so that I
can drop the logos on to a new background?

I've looked in my small book but it doesn't cut. Another PS would be
what are the best books? The Gimp Manual and Grokking The Gimp?

Thanks,

Jonathan

"Hey, I think I finally got the hang of i-"



Re: Making Transparent from Non-Transparent

2001-01-12 Thread Jonathan Gift

COUTIER Eric wrote:
> I think it's the latests versions. Why don't you migrate to gimp-1.2 ?

Love to. But I can't grab the compiled deb binaries on the Debian site
because they're compiled against sid and that means upgrading a lot of
libraries on my potato system and breaking stuff. The other choice, I
guess, is finding someone who has compiled it against potato, but I
placed a post in Debian and no takers. last choice is compiling it
myself... I don't know if it will work with potato's version of the GTK
dev libraries and so further upgrading is in store..

Any suggestions welcome. I'd love to have it...

BTW I do have a late 1.17 or somthing butw hen it loads it insists on
nstalling, not in the customary .gimp directory, but .gimp-1.117 etc.
directory. Clearly to show it's not done. ANY way to have it default to
.gimp (I tried changing the paths in preferences and no go...).

Thanks,

Jonathan

"Hey, I think I finally got the hang of i-"




Re: Making Transparent from Non-Transparent

2001-01-12 Thread Guillermo S. Romero / Familia Romero

[EMAIL PROTECTED] (2001-01-12 at 1333.33 +0100):
> Second big question is I have a lot of old logos Istored on a black
> background. Is there a way of turning the black transparent so that I
> can drop the logos on to a new background?

There is a colour to alpha plugin, IIRC. Sometimes it needs some
manual help, but it is a start.

> I've looked in my small book but it doesn't cut. Another PS would be
> what are the best books? The Gimp Manual and Grokking The Gimp?

Yep, good books.

GSR
 



Re: Making Transparent from Non-Transparent

2001-01-12 Thread Jon Winters

Jonathan Gift wrote:
> 
> COUTIER Eric wrote:
> > I think it's the latests versions. Why don't you migrate to gimp-1.2 ?
> 
> Love to. But I can't grab the compiled deb binaries on the Debian site
> because they're compiled against sid and that means upgrading a lot of
> libraries on my potato system and breaking stuff.
> 
> Any suggestions welcome. I'd love to have it...

Compile!  Its not hard.  Just download the source, unzip it,
./configure, make, su to root, and make install.

It'll let you know during ./configure if you're missing stuff that you
need.

I always compile because I like to know that its built perfectly for my
system.

Debs and RPMS have made people lazy or something...   For important
things like the Gimp I compile.
--
Jon Winters  http://www.obscurasite.com/jon/

   "Everybody Loves The GIMP!"
  http://www.gimp.org/



Re: Making Transparent from Non-Transparent

2001-01-12 Thread Jonathan Gift

Seth Burgess wrote:
> 
> Try out my plug-in, colortoalpha.  Its found under
> Filters/Colors/Color To Alpha... 

Don't have it, at least on 1.04 which came with potato and I'm trying to
get my hand on something more recent...

Have you an url for it?

BTW, all the plugins I've seen come in source? You have to compile them
all? Any special libraries involved?

Thanks,

Jonathan




Re: Making Transparent from Non-Transparent

2001-01-12 Thread Teri A. Ward

If the background color is unique in the image,
you can just do a Select > By Color and cut it.
But you will need to do Layers > Add Alpha Layer
first to add the transparency.

Hope this helps,

Teri Ward
Tech Writer/Web Designer
Seattle




Re: Making Transparent from Non-Transparent

2001-01-12 Thread Tal Danzig

Hi,

On Fri, Jan 12, 2001 at 07:09:56AM -0600, Jon Winters wrote:
> Jonathan Gift wrote:
> > 
> > COUTIER Eric wrote:
> > > I think it's the latests versions. Why don't you migrate to gimp-1.2 ?
> > 
> > Love to. But I can't grab the compiled deb binaries on the Debian site
> > because they're compiled against sid and that means upgrading a lot of
> > libraries on my potato system and breaking stuff.
> > 
> > Any suggestions welcome. I'd love to have it...
> 
> Compile!  Its not hard.  Just download the source, unzip it,
> ./configure, make, su to root, and make install.
> 

Or, you can add an apt sources line to /etc/apt/sources.list
eg:
deb-src ftp://ftp.debian.org/debian sid main contrib non-free

and:

apt-get -b source gimp1.2

This will compile the sid GIMP 1.2 package for you.
You may have to chase down a few libs (and get the -dev packages for them)

- Tal

-- 
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Re: Making Transparent from Non-Transparent

2001-01-13 Thread VosSedai

Same problem with the upgrade thing running 1.17 also on potato have checked
_extensively_ into upgrading but it is a definate no-go :/ Major breakage on
a lot of things with the upgrade to woody. Ive decided to sit tight till
some major problems with other proggies I run are fixed. 
 About the changing to transparent I usually cut the logo out and paste it
onto
á tranparent bgbit of a hack ...and not for use with complicated logos
lol but for a simple one it works well and sometimes you get some
interesting effects :) anyway hope it helps Groetjes
VosSedai
 
"Cynics are made, not born."  |"Great spirits have always found violent
 K.Marx   | opposition from mediocre minds. The latter 
  | cannot understand it when a man does not 
  | thoughtlessly submit to hereditary prejudices
  | but honestly and courageously uses his
  | intelligence"-Albert Einstein-





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Re: Making Transparent from Non-Transparent

2001-01-13 Thread Jonathan Gift

VosSedai wrote:
> Same problem with the upgrade thing running 1.17 also on potato have checked
> _extensively_ into upgrading but it is a definate no-go :/ Major breakage on
> a lot of things with the upgrade to woody. Ive decided to sit tight till
> some major problems with other proggies I run are fixed. 

I'm about to go into that. You sure about the breaking. I've heard from
one guy who has it up and running fine and as some great advice, but it
looks like his system is a mixed Woody/Sid anyway. I just posted the
list of what I think will be required. I'm just worried that it will
break existing GTK apps, the libgtk upgrade...

Jonathan