turning off antialiasing in imagettftext() does not work

From: http://www.php.net/manual/en/function.imagettftext.php
"color is the color index. Using the negative of a color index has the
effect of turning off antialiasing."

I'm using a bundled version of GD: 2.0.23 compatible. When using the
function imagettftext() with a negative color to get a aliased text as
stated in the docs the text gets grainy. Not antialised, and not
aliased. Something in between (ugly!). I've tried several fonts.
What could be wrong?

Leif

Leif Wessman wrote:[color=blue]
> From: http://www.php.net/manual/en/function.imagettftext.php
> "color is the color index. Using the negative of a color index has[/color]
the[color=blue]
> effect of turning off antialiasing."
>
> I'm using a bundled version of GD: 2.0.23 compatible. When using the
> function imagettftext() with a negative color to get a aliased text[/color]
as[color=blue]
> stated in the docs the text gets grainy. Not antialised, and not
> aliased. Something in between (ugly!). I've tried several fonts.
> What could be wrong?
>
> Leif[/color]

This is my code. As you can see there is nothing special about it:

<?
header("Content-type: " . image_type_to_mime_type (IMAGETYPE_PNG));
$im = imagecreate(400, 30);
$white = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);

imagettftext($im, 10, 0, 10, 20, -$black, "verdanab.ttf", "Testing...
Omega");
imagepng($im);
imagedestroy($im);
?>

This is the output of the script:

http://www.freewebs.com/leifwessman/test.png
As you can see, the text is grainy.

Leif Wessman wrote:[color=blue]
>
> Leif Wessman wrote:[color=green]
> > From: http://www.php.net/manual/en/function.imagettftext.php
> > "color is the color index. Using the negative of a color index has[/color]
> the[color=green]
> > effect of turning off antialiasing."
> >
> > I'm using a bundled version of GD: 2.0.23 compatible. When using the
> > function imagettftext() with a negative color to get a aliased text[/color]
> as[color=green]
> > stated in the docs the text gets grainy. Not antialised, and not
> > aliased. Something in between (ugly!). I've tried several fonts.[/color][/color]
[color=blue]
> http://www.freewebs.com/leifwessman/test.png
> As you can see, the text is grainy.[/color]

It looks aliased to me... I think it just looks grainy because it's aliased and
tiny. I think if you make it bigger, the aliasing will become apparent.

Shawn
--
Shawn Wilson
shawn@glassgiant.com
http://www.glassgiant.com

Shawn Wilson wrote:[color=blue]
> Leif Wessman wrote:[color=green]
> >
> > Leif Wessman wrote:[color=darkred]
> > > From: http://www.php.net/manual/en/function.imagettftext.php
> > > "color is the color index. Using the negative of a color index[/color][/color][/color]
has[color=blue][color=green]
> > the[color=darkred]
> > > effect of turning off antialiasing."
> > >
> > > I'm using a bundled version of GD: 2.0.23 compatible. When using[/color][/color][/color]
the[color=blue][color=green][color=darkred]
> > > function imagettftext() with a negative color to get a aliased[/color][/color][/color]
text[color=blue][color=green]
> > as[color=darkred]
> > > stated in the docs the text gets grainy. Not antialised, and not
> > > aliased. Something in between (ugly!). I've tried several fonts.[/color][/color]
>[color=green]
> > http://www.freewebs.com/leifwessman/test.png
> > As you can see, the text is grainy.[/color]
>
> It looks aliased to me... I think it just looks grainy because it's[/color]
aliased and[color=blue]
> tiny. I think if you make it bigger, the aliasing will become[/color]
apparent.[color=blue]
>
> Shawn
> --
> Shawn Wilson
> shawn@glassgiant.com
> http://www.glassgiant.com[/color]


I've tried making it bigger. I've tried different fonts. Same result.
It shouldn't look that way... Something is wrong.

Leif