Re: [Gimp-user] IE deals with png transparency?

2004-04-09 Thread Michael Schumacher
Zhang Weiwu wrote:
For years I was told and tried and confirmed the alpha channel is not 
supported on IE with a simple img src=.

Recently I decide to convert all my gif pictures to png. I used GIMP, 
and (as expected) I lose transparency on IE.

But later I tried another tool, the gif2png by Eric Raymond, 
surprisingly the created png still can display transparent area on IE 

I don't know the reason, can anyone brief me?
GIMP saves the PNG als a full RGBA image by default, IE can't handle 
this without hacks in the HTML file. gif2png converts to PNG without 
changing the mode (like ImageMagick or GraphicsMagick do, too).

Can we add an option to GIMP to let it create the png that is 
transparency-compatibile with IE?
The option is already there, you have to convert your image to indexed 
mode before saving.

HTH,
Michael
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Re: [Gimp-user] Contact sheet in gimp?

2004-04-09 Thread David Neary
Hi Sean,

sean wrote:
 I'm looking in the Gimp for the same function as contact sheet in 
 photoshop. That is , take a selection of files and make a contact sheet 
 to print the selection.
 
 Does it exist?

Not yet, but I believe that someone is hoping to do this soon as
part of a revamped thumbnail browser (don't hold your breath,
though - I don't believe it's on the list of features which is
definitely planned for 2.2).

Cheers,
Dave.

-- 
   David Neary,
   Lyon, France
  E-Mail: [EMAIL PROTECTED]
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Re: [Gimp-user] Contact sheet in gimp?

2004-04-09 Thread Sven Neumann
Hi,

sean [EMAIL PROTECTED] writes:

 I'm looking in the Gimp for the same function as contact sheet in
 photoshop. That is , take a selection of files and make a contact
 sheet to print the selection.

http://bugzilla.gnome.org/show_bug.cgi?id=132532


Sven
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Re: [Gimp-user] Contact sheet in gimp?

2004-04-09 Thread Patrick Shanahan
* Patrick Shanahan [EMAIL PROTECTED] [04-09-04 08:39]:
 * Sven Neumann [EMAIL PROTECTED] [04-09-04 07:39]:
  sean [EMAIL PROTECTED] writes:
   I'm looking in the Gimp for the same function as contact sheet in
   photoshop. That is , take a selection of files and make a contact
   sheet to print the selection.
  
  http://bugzilla.gnome.org/show_bug.cgi?id=132532
 
 from ImageMagick, mogrify.

make that: from ImageMagick, montage.
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Patrick ShanahanRegistered Linux User #207535
http://wahoo.no-ip.org@ http://counter.li.org
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Re: [Gimp-user] Contact sheet in gimp?

2004-04-09 Thread Patrick Shanahan
* Sven Neumann [EMAIL PROTECTED] [04-09-04 07:39]:
 sean [EMAIL PROTECTED] writes:
  I'm looking in the Gimp for the same function as contact sheet in
  photoshop. That is , take a selection of files and make a contact
  sheet to print the selection.
 
 http://bugzilla.gnome.org/show_bug.cgi?id=132532

from ImageMagick, mogrify.
-- 
Patrick ShanahanRegistered Linux User #207535
http://wahoo.no-ip.org@ http://counter.li.org
HOG # US1244711
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Re: [Gimp-user] Contact sheet in gimp?

2004-04-09 Thread Carol Spears
On Thu, Apr 08, 2004 at 09:46:15PM -0400, sean wrote:
 I'm looking in the Gimp for the same function as contact sheet in 
 photoshop. That is , take a selection of files and make a contact sheet 
 to print the selection.
 
 Does it exist?
 
i have a python script that is working fairly well in gimp-1.3 -- i have
yet to move things to my gimp2 directories, i dont think there is a
problem with it in gimp2 however.

it spits html out, but could be easily modified to other formats.  here
is the page it is producing lately:
http://carol.gimp.org/gallery/reflections/whole_set.html

the script is:
http://carol.gimp.org/files/camera-gallery.py.txt

carol

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Re: [Gimp-user] Contact sheet in gimp?

2004-04-09 Thread regis rampnoux

On 09-Apr-2004 Patrick Shanahan wrote:
  sean [EMAIL PROTECTED] writes:
   I'm looking in the Gimp for the same function as contact sheet in
   photoshop. That is , take a selection of files and make a contact
   sheet to print the selection.

 from ImageMagick, mogrify.
 make that: from ImageMagick, montage.

But he wants to select files!
I move the selected files with gqview to a temporary directory and run a small
shell in the parent directory:

/usr/local/bin/montage -tile 4x8 -adjoin -verbose -page 2700x4000 -geometry
600x450+20+20 $1/* `basename $1`.sheet.png

It is not optimized, you must change values to that you prefer. Hope this can
help...

-- 
regisr  photographies http://regisr.regix.com/
 portail photo http://www.regix.net
 magazine http://www.regix.com/

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Re: [Gimp-user] Opacity Layers?

2004-04-09 Thread Michael Schumacher
David Wright wrote:
Does the gimp support opacity layers? By opacity layer I mean an layer 
with a 8-bit numer for each pixel, where instead of being intrepreted as 
a gray or color intensity value, the number is intrepreted as a pure 
opacity. When it is 255, the pixel is black; when it is 0, the pixel 
below shows through perfectly; when it is intermediate, the pixel is an 
appropriate average of black and the color of the pixel below.

Assuming such a layer exists, how can I transform a grayscale layer into 
an opacity layer?
This sounds like you want layer masks or layer modes. But you probably 
won't need them here.

This problem arises because I have scanned penciled text on white paper 
into a single-layer grayscale image. I want to use the gimp to make that 
text appear over another image. I have already tried (1) making a single 
color transparent and (2) using the magic wand to partially select the 
text. These solutions all have the problem that some of the color of the 
original background leaks into the final image near the text. That's 
why I want to use the intensity values of the original purely to measure 
opacity, not to communicate any color information at all. How can I do 
this?
Try Filters-Colors-Color To Alpha

HTH,
Michael
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