RE: Low Quality Gifs

2000-10-06 Thread COUTIER Eric

The palette you've used to make your gif image is not good. To correct this,
open your png file, choose "Image/Mode/Indexed" and then choose generate
optimal palette. Then save it under gif format.

I've a question too: ie4 seem not support png format. In fact, when i've
clicked on you png link below, ie4 has asked to me if i want to "save or
open the file", and hasn't displayed it. Why ?
-Message d'origine-
De: Philip Fletcher [mailto:[EMAIL PROTECTED]]
Date: vendredi 06 octobre 2000 13:34
À: gimp-user
Objet: Low Quality Gifs


Hi

I have been trying to create gifs with transparent backgrounds for use on my
website.  No real problems (RTFM'd) with that, but the quality is appalling
in both colour and resolution.

As an example http://www.stutchbury.com/images/projects.gif versus a similar
image in PNG format at http://www.stutchbury.com/images/projects_d.png .

It is on the conversion to 'indexed' that the degradation occurs.

Any ideas?

Regards

Philip
--
Philip Fletcher
Stutchbury Ltd
[EMAIL PROTECTED]
+44(0)7860 40



RE: Low Quality Gifs

2000-10-06 Thread James Smaby

Are you converting to indexed before or after merging all layers?  The less
colors you give it the better job it can do, so flatten out the colors from
non-visable layers.



Re: Low Quality Gifs

2000-10-06 Thread Alan Buxey

hi,

 As an example http://www.stutchbury.com/images/projects.gif versus a similar
 image in PNG format at http://www.stutchbury.com/images/projects_d.png .
 
 It is on the conversion to 'indexed' that the degradation occurs.
 
 Any ideas?

sure that your PNG image is also being shrunk down to 8-bit?
 
GIF cannot have multi-transparency mapping. only one alpha level - whereas
PNG can have nice blended transparency.

in basic, PNG is a better image format

alan




RE: Low Quality Gifs

2000-10-06 Thread Alan Buxey

hi,

 I've a question too: ie4 seem not support png format. In fact, when i've
 clicked on you png link below, ie4 has asked to me if i want to "save or
 open the file", and hasn't displayed it. Why ?

because, as you said, IE4 doesnt support PNG. there are updates around,
but its better to move to IE 5.x if you have to use that sort of thing ;-)

...now, gotta get 1.1.27 working! ;-)

alan




Re: Low Quality Gifs

2000-10-06 Thread Carol Spears

Do all of the work on your image in the RGB format that the Gimp will
start you out with.  If you are in a situation where you must save your
image often, saving in the Gimps native format "xcf" saves the most
information and is the least hassle.  The very last step before the
"Save" should be the conversion from RGB to indexed.  

The Gimp makes lovely gifs.

What is ie?

COUTIER Eric wrote:
 
 The palette you've used to make your gif image is not good. To correct this,
 open your png file, choose "Image/Mode/Indexed" and then choose generate
 optimal palette. Then save it under gif format.